Merge pull request #3487 from Infisical/ENG-2633

feat(secret-sync): Hashicorp Vault App Connection & Secret Sync

backend/src/lib/api-docs/constants.ts

@@ -1862,6 +1862,13 @@ export const AppConnections = {
       instanceUrl: "The Windmill instance URL to connect with (defaults to https://app.windmill.dev).",
       accessToken: "The access token to use to connect with Windmill."
     },
+    HC_VAULT: {
+      instanceUrl: "The Hashicrop Vault instance URL to connect with.",
+      namespace: "The Hashicrop Vault namespace to connect with.",
+      accessToken: "The access token used to connect with Hashicorp Vault.",
+      roleId: "The Role ID used to connect with Hashicorp Vault.",
+      secretId: "The Secret ID used to connect with Hashicorp Vault."
+    },
     LDAP: {
       provider: "The type of LDAP provider. Determines provider-specific behaviors.",
       url: "The LDAP/LDAPS URL to connect to (e.g., 'ldap://domain-or-ip:389' or 'ldaps://domain-or-ip:636').",
@@ -2019,6 +2026,10 @@ export const SecretSyncs = {
       workspace: "The Windmill workspace to sync secrets to.",
       path: "The Windmill workspace path to sync secrets to."
     },
+    HC_VAULT: {
+      mount: "The Hashicorp Vault Secrets Engine Mount to sync secrets to.",
+      path: "The Hashicorp Vault path to sync secrets to."
+    },
     TEAMCITY: {
       project: "The TeamCity project to sync secrets to.",
       buildConfig: "The TeamCity build configuration to sync secrets to."

backend/src/server/routes/v1/app-connection-routers/app-connection-router.ts

@@ -28,6 +28,10 @@ import {
 } from "@app/services/app-connection/databricks";
 import { GcpConnectionListItemSchema, SanitizedGcpConnectionSchema } from "@app/services/app-connection/gcp";
 import { GitHubConnectionListItemSchema, SanitizedGitHubConnectionSchema } from "@app/services/app-connection/github";
+import {
+  HCVaultConnectionListItemSchema,
+  SanitizedHCVaultConnectionSchema
+} from "@app/services/app-connection/hc-vault";
 import {
   HumanitecConnectionListItemSchema,
   SanitizedHumanitecConnectionSchema
@@ -68,6 +72,7 @@ const SanitizedAppConnectionSchema = z.union([
   ...SanitizedMsSqlConnectionSchema.options,
   ...SanitizedCamundaConnectionSchema.options,
   ...SanitizedAuth0ConnectionSchema.options,
+  ...SanitizedHCVaultConnectionSchema.options,
   ...SanitizedAzureClientSecretsConnectionSchema.options,
   ...SanitizedWindmillConnectionSchema.options,
   ...SanitizedLdapConnectionSchema.options,
@@ -88,6 +93,7 @@ const AppConnectionOptionsSchema = z.discriminatedUnion("app", [
   MsSqlConnectionListItemSchema,
   CamundaConnectionListItemSchema,
   Auth0ConnectionListItemSchema,
+  HCVaultConnectionListItemSchema,
   AzureClientSecretsConnectionListItemSchema,
   WindmillConnectionListItemSchema,
   LdapConnectionListItemSchema,

backend/src/server/routes/v1/app-connection-routers/hc-vault-connection-router.ts

@@ -0,0 +1,47 @@
+import z from "zod";
+
+import { readLimit } from "@app/server/config/rateLimiter";
+import { verifyAuth } from "@app/server/plugins/auth/verify-auth";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import {
+  CreateHCVaultConnectionSchema,
+  SanitizedHCVaultConnectionSchema,
+  UpdateHCVaultConnectionSchema
+} from "@app/services/app-connection/hc-vault";
+import { AuthMode } from "@app/services/auth/auth-type";
+
+import { registerAppConnectionEndpoints } from "./app-connection-endpoints";
+
+export const registerHCVaultConnectionRouter = async (server: FastifyZodProvider) => {
+  registerAppConnectionEndpoints({
+    app: AppConnection.HCVault,
+    server,
+    sanitizedResponseSchema: SanitizedHCVaultConnectionSchema,
+    createSchema: CreateHCVaultConnectionSchema,
+    updateSchema: UpdateHCVaultConnectionSchema
+  });
+
+  // The following endpoints are for internal Infisical App use only and not part of the public API
+  server.route({
+    method: "GET",
+    url: `/:connectionId/mounts`,
+    config: {
+      rateLimit: readLimit
+    },
+    schema: {
+      params: z.object({
+        connectionId: z.string().uuid()
+      }),
+      response: {
+        200: z.string().array()
+      }
+    },
+    onRequest: verifyAuth([AuthMode.JWT]),
+    handler: async (req) => {
+      const { connectionId } = req.params;
+
+      const mounts = await server.services.appConnection.hcvault.listMounts(connectionId, req.permission);
+      return mounts;
+    }
+  });
+};

backend/src/server/routes/v1/app-connection-routers/index.ts

@@ -9,6 +9,7 @@ import { registerCamundaConnectionRouter } from "./camunda-connection-router";
 import { registerDatabricksConnectionRouter } from "./databricks-connection-router";
 import { registerGcpConnectionRouter } from "./gcp-connection-router";
 import { registerGitHubConnectionRouter } from "./github-connection-router";
+import { registerHCVaultConnectionRouter } from "./hc-vault-connection-router";
 import { registerHumanitecConnectionRouter } from "./humanitec-connection-router";
 import { registerLdapConnectionRouter } from "./ldap-connection-router";
 import { registerMsSqlConnectionRouter } from "./mssql-connection-router";
@@ -37,6 +38,7 @@ export const APP_CONNECTION_REGISTER_ROUTER_MAP: Record<AppConnection, (server:
     [AppConnection.Camunda]: registerCamundaConnectionRouter,
     [AppConnection.Windmill]: registerWindmillConnectionRouter,
     [AppConnection.Auth0]: registerAuth0ConnectionRouter,
+    [AppConnection.HCVault]: registerHCVaultConnectionRouter,
     [AppConnection.LDAP]: registerLdapConnectionRouter,
     [AppConnection.TeamCity]: registerTeamCityConnectionRouter
   };

backend/src/server/routes/v1/secret-sync-routers/hc-vault-sync-router.ts

@@ -0,0 +1,17 @@
+import {
+  CreateHCVaultSyncSchema,
+  HCVaultSyncSchema,
+  UpdateHCVaultSyncSchema
+} from "@app/services/secret-sync/hc-vault";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+
+import { registerSyncSecretsEndpoints } from "./secret-sync-endpoints";
+
+export const registerHCVaultSyncRouter = async (server: FastifyZodProvider) =>
+  registerSyncSecretsEndpoints({
+    destination: SecretSync.HCVault,
+    server,
+    responseSchema: HCVaultSyncSchema,
+    createSchema: CreateHCVaultSyncSchema,
+    updateSchema: UpdateHCVaultSyncSchema
+  });

backend/src/server/routes/v1/secret-sync-routers/index.ts

@@ -8,6 +8,7 @@ import { registerCamundaSyncRouter } from "./camunda-sync-router";
 import { registerDatabricksSyncRouter } from "./databricks-sync-router";
 import { registerGcpSyncRouter } from "./gcp-sync-router";
 import { registerGitHubSyncRouter } from "./github-sync-router";
+import { registerHCVaultSyncRouter } from "./hc-vault-sync-router";
 import { registerHumanitecSyncRouter } from "./humanitec-sync-router";
 import { registerTeamCitySyncRouter } from "./teamcity-sync-router";
 import { registerTerraformCloudSyncRouter } from "./terraform-cloud-sync-router";
@@ -29,5 +30,6 @@ export const SECRET_SYNC_REGISTER_ROUTER_MAP: Record<SecretSync, (server: Fastif
   [SecretSync.Camunda]: registerCamundaSyncRouter,
   [SecretSync.Vercel]: registerVercelSyncRouter,
   [SecretSync.Windmill]: registerWindmillSyncRouter,
+  [SecretSync.HCVault]: registerHCVaultSyncRouter,
   [SecretSync.TeamCity]: registerTeamCitySyncRouter
 };

backend/src/server/routes/v1/secret-sync-routers/secret-sync-router.ts

@@ -22,6 +22,7 @@ import { CamundaSyncListItemSchema, CamundaSyncSchema } from "@app/services/secr
 import { DatabricksSyncListItemSchema, DatabricksSyncSchema } from "@app/services/secret-sync/databricks";
 import { GcpSyncListItemSchema, GcpSyncSchema } from "@app/services/secret-sync/gcp";
 import { GitHubSyncListItemSchema, GitHubSyncSchema } from "@app/services/secret-sync/github";
+import { HCVaultSyncListItemSchema, HCVaultSyncSchema } from "@app/services/secret-sync/hc-vault";
 import { HumanitecSyncListItemSchema, HumanitecSyncSchema } from "@app/services/secret-sync/humanitec";
 import { TeamCitySyncListItemSchema, TeamCitySyncSchema } from "@app/services/secret-sync/teamcity";
 import { TerraformCloudSyncListItemSchema, TerraformCloudSyncSchema } from "@app/services/secret-sync/terraform-cloud";
@@ -41,6 +42,7 @@ const SecretSyncSchema = z.discriminatedUnion("destination", [
   CamundaSyncSchema,
   VercelSyncSchema,
   WindmillSyncSchema,
+  HCVaultSyncSchema,
   TeamCitySyncSchema
 ]);
 
@@ -57,6 +59,7 @@ const SecretSyncOptionsSchema = z.discriminatedUnion("destination", [
   CamundaSyncListItemSchema,
   VercelSyncListItemSchema,
   WindmillSyncListItemSchema,
+  HCVaultSyncListItemSchema,
   TeamCitySyncListItemSchema
 ]);
 

backend/src/services/app-connection/app-connection-enums.ts

@@ -14,6 +14,7 @@ export enum AppConnection {
   Camunda = "camunda",
   Windmill = "windmill",
   Auth0 = "auth0",
+  HCVault = "hashicorp-vault",
   LDAP = "ldap",
   TeamCity = "teamcity"
 }

backend/src/services/app-connection/app-connection-fns.ts

@@ -41,6 +41,11 @@ import {
 } from "./databricks";
 import { GcpConnectionMethod, getGcpConnectionListItem, validateGcpConnectionCredentials } from "./gcp";
 import { getGitHubConnectionListItem, GitHubConnectionMethod, validateGitHubConnectionCredentials } from "./github";
+import {
+  getHCVaultConnectionListItem,
+  HCVaultConnectionMethod,
+  validateHCVaultConnectionCredentials
+} from "./hc-vault";
 import {
   getHumanitecConnectionListItem,
   HumanitecConnectionMethod,
@@ -84,6 +89,7 @@ export const listAppConnectionOptions = () => {
     getAzureClientSecretsConnectionListItem(),
     getWindmillConnectionListItem(),
     getAuth0ConnectionListItem(),
+    getHCVaultConnectionListItem(),
     getLdapConnectionListItem(),
     getTeamCityConnectionListItem()
   ].sort((a, b) => a.name.localeCompare(b.name));
@@ -152,6 +158,7 @@ export const validateAppConnectionCredentials = async (
     [AppConnection.TerraformCloud]: validateTerraformCloudConnectionCredentials as TAppConnectionCredentialsValidator,
     [AppConnection.Auth0]: validateAuth0ConnectionCredentials as TAppConnectionCredentialsValidator,
     [AppConnection.Windmill]: validateWindmillConnectionCredentials as TAppConnectionCredentialsValidator,
+    [AppConnection.HCVault]: validateHCVaultConnectionCredentials as TAppConnectionCredentialsValidator,
     [AppConnection.LDAP]: validateLdapConnectionCredentials as TAppConnectionCredentialsValidator,
     [AppConnection.TeamCity]: validateTeamCityConnectionCredentials as TAppConnectionCredentialsValidator
   };
@@ -186,10 +193,13 @@ export const getAppConnectionMethodName = (method: TAppConnection["method"]) =>
     case MsSqlConnectionMethod.UsernameAndPassword:
       return "Username & Password";
     case WindmillConnectionMethod.AccessToken:
+    case HCVaultConnectionMethod.AccessToken:
     case TeamCityConnectionMethod.AccessToken:
       return "Access Token";
     case Auth0ConnectionMethod.ClientCredentials:
       return "Client Credentials";
+    case HCVaultConnectionMethod.AppRole:
+      return "App Role";
     case LdapConnectionMethod.SimpleBind:
       return "Simple Bind";
     default:
@@ -238,6 +248,7 @@ export const TRANSITION_CONNECTION_CREDENTIALS_TO_PLATFORM: Record<
   [AppConnection.AzureClientSecrets]: platformManagedCredentialsNotSupported,
   [AppConnection.Windmill]: platformManagedCredentialsNotSupported,
   [AppConnection.Auth0]: platformManagedCredentialsNotSupported,
+  [AppConnection.HCVault]: platformManagedCredentialsNotSupported,
   [AppConnection.LDAP]: platformManagedCredentialsNotSupported, // we could support this in the future
   [AppConnection.TeamCity]: platformManagedCredentialsNotSupported
 };

backend/src/services/app-connection/app-connection-maps.ts

@@ -16,6 +16,7 @@ export const APP_CONNECTION_NAME_MAP: Record<AppConnection, string> = {
   [AppConnection.Camunda]: "Camunda",
   [AppConnection.Windmill]: "Windmill",
   [AppConnection.Auth0]: "Auth0",
+  [AppConnection.HCVault]: "Hashicorp Vault",
   [AppConnection.LDAP]: "LDAP",
   [AppConnection.TeamCity]: "TeamCity"
 };

backend/src/services/app-connection/app-connection-service.ts

@@ -43,6 +43,8 @@ import { ValidateGcpConnectionCredentialsSchema } from "./gcp";
 import { gcpConnectionService } from "./gcp/gcp-connection-service";
 import { ValidateGitHubConnectionCredentialsSchema } from "./github";
 import { githubConnectionService } from "./github/github-connection-service";
+import { ValidateHCVaultConnectionCredentialsSchema } from "./hc-vault";
+import { hcVaultConnectionService } from "./hc-vault/hc-vault-connection-service";
 import { ValidateHumanitecConnectionCredentialsSchema } from "./humanitec";
 import { humanitecConnectionService } from "./humanitec/humanitec-connection-service";
 import { ValidateLdapConnectionCredentialsSchema } from "./ldap";
@@ -81,6 +83,7 @@ const VALIDATE_APP_CONNECTION_CREDENTIALS_MAP: Record<AppConnection, TValidateAp
   [AppConnection.AzureClientSecrets]: ValidateAzureClientSecretsConnectionCredentialsSchema,
   [AppConnection.Windmill]: ValidateWindmillConnectionCredentialsSchema,
   [AppConnection.Auth0]: ValidateAuth0ConnectionCredentialsSchema,
+  [AppConnection.HCVault]: ValidateHCVaultConnectionCredentialsSchema,
   [AppConnection.LDAP]: ValidateLdapConnectionCredentialsSchema,
   [AppConnection.TeamCity]: ValidateTeamCityConnectionCredentialsSchema
 };
@@ -459,6 +462,7 @@ export const appConnectionServiceFactory = ({
     vercel: vercelConnectionService(connectAppConnectionById),
     azureClientSecrets: azureClientSecretsConnectionService(connectAppConnectionById, appConnectionDAL, kmsService),
     auth0: auth0ConnectionService(connectAppConnectionById, appConnectionDAL, kmsService),
+    hcvault: hcVaultConnectionService(connectAppConnectionById),
     windmill: windmillConnectionService(connectAppConnectionById),
     teamcity: teamcityConnectionService(connectAppConnectionById)
   };

backend/src/services/app-connection/app-connection-types.ts

@@ -57,6 +57,12 @@ import {
   TGitHubConnectionInput,
   TValidateGitHubConnectionCredentialsSchema
 } from "./github";
+import {
+  THCVaultConnection,
+  THCVaultConnectionConfig,
+  THCVaultConnectionInput,
+  TValidateHCVaultConnectionCredentialsSchema
+} from "./hc-vault";
 import {
   THumanitecConnection,
   THumanitecConnectionConfig,
@@ -116,6 +122,7 @@ export type TAppConnection = { id: string } & (
   | TAzureClientSecretsConnection
   | TWindmillConnection
   | TAuth0Connection
+  | THCVaultConnection
   | TLdapConnection
   | TTeamCityConnection
 );
@@ -140,6 +147,7 @@ export type TAppConnectionInput = { id: string } & (
   | TAzureClientSecretsConnectionInput
   | TWindmillConnectionInput
   | TAuth0ConnectionInput
+  | THCVaultConnectionInput
   | TLdapConnectionInput
   | TTeamCityConnectionInput
 );
@@ -170,6 +178,7 @@ export type TAppConnectionConfig =
   | TVercelConnectionConfig
   | TWindmillConnectionConfig
   | TAuth0ConnectionConfig
+  | THCVaultConnectionConfig
   | TLdapConnectionConfig
   | TTeamCityConnectionConfig;
 
@@ -189,6 +198,7 @@ export type TValidateAppConnectionCredentialsSchema =
   | TValidateTerraformCloudConnectionCredentialsSchema
   | TValidateWindmillConnectionCredentialsSchema
   | TValidateAuth0ConnectionCredentialsSchema
+  | TValidateHCVaultConnectionCredentialsSchema
   | TValidateLdapConnectionCredentialsSchema
   | TValidateTeamCityConnectionCredentialsSchema;
 

backend/src/services/app-connection/hc-vault/hc-vault-connection-enums.ts

@@ -0,0 +1,4 @@
+export enum HCVaultConnectionMethod {
+  AccessToken = "access-token",
+  AppRole = "app-role"
+}

backend/src/services/app-connection/hc-vault/hc-vault-connection-fns.ts

@@ -0,0 +1,119 @@
+import { AxiosError } from "axios";
+
+import { request } from "@app/lib/config/request";
+import { BadRequestError } from "@app/lib/errors";
+import { removeTrailingSlash } from "@app/lib/fn";
+import { blockLocalAndPrivateIpAddresses } from "@app/lib/validator";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+
+import { HCVaultConnectionMethod } from "./hc-vault-connection-enums";
+import {
+  THCVaultConnection,
+  THCVaultConnectionConfig,
+  THCVaultMountResponse,
+  TValidateHCVaultConnectionCredentials
+} from "./hc-vault-connection-types";
+
+export const getHCVaultInstanceUrl = async (config: THCVaultConnectionConfig) => {
+  const instanceUrl = removeTrailingSlash(config.credentials.instanceUrl);
+
+  await blockLocalAndPrivateIpAddresses(instanceUrl);
+
+  return instanceUrl;
+};
+
+export const getHCVaultConnectionListItem = () => ({
+  name: "HCVault" as const,
+  app: AppConnection.HCVault as const,
+  methods: Object.values(HCVaultConnectionMethod) as [
+    HCVaultConnectionMethod.AccessToken,
+    HCVaultConnectionMethod.AppRole
+  ]
+});
+
+type TokenRespData = {
+  auth: {
+    client_token: string;
+  };
+};
+
+export const getHCVaultAccessToken = async (connection: TValidateHCVaultConnectionCredentials) => {
+  // Return access token directly if not using AppRole method
+  if (connection.method !== HCVaultConnectionMethod.AppRole) {
+    return connection.credentials.accessToken;
+  }
+
+  // Generate temporary token for AppRole method
+  try {
+    const { instanceUrl, roleId, secretId } = connection.credentials;
+    const tokenResp = await request.post<TokenRespData>(
+      `${removeTrailingSlash(instanceUrl)}/v1/auth/approle/login`,
+      { role_id: roleId, secret_id: secretId },
+      {
+        headers: {
+          "Content-Type": "application/json",
+          ...(connection.credentials.namespace ? { "X-Vault-Namespace": connection.credentials.namespace } : {})
+        }
+      }
+    );
+
+    if (tokenResp.status !== 200) {
+      throw new BadRequestError({
+        message: `Unable to validate credentials: Hashicorp Vault responded with a status code of ${tokenResp.status} (${tokenResp.statusText}). Verify credentials and try again.`
+      });
+    }
+
+    return tokenResp.data.auth.client_token;
+  } catch (e: unknown) {
+    throw new BadRequestError({
+      message: "Unable to validate connection: verify credentials"
+    });
+  }
+};
+
+export const validateHCVaultConnectionCredentials = async (config: THCVaultConnectionConfig) => {
+  const instanceUrl = await getHCVaultInstanceUrl(config);
+
+  try {
+    const accessToken = await getHCVaultAccessToken(config);
+
+    // Verify token
+    await request.get(`${instanceUrl}/v1/auth/token/lookup-self`, {
+      headers: { "X-Vault-Token": accessToken }
+    });
+
+    return config.credentials;
+  } catch (error: unknown) {
+    if (error instanceof AxiosError) {
+      throw new BadRequestError({
+        message: `Failed to validate credentials: ${error.message || "Unknown error"}`
+      });
+    }
+    throw new BadRequestError({
+      message: "Unable to validate connection: verify credentials"
+    });
+  }
+};
+
+export const listHCVaultMounts = async (appConnection: THCVaultConnection) => {
+  const instanceUrl = await getHCVaultInstanceUrl(appConnection);
+  const accessToken = await getHCVaultAccessToken(appConnection);
+
+  const { data } = await request.get<THCVaultMountResponse>(`${instanceUrl}/v1/sys/mounts`, {
+    headers: {
+      "X-Vault-Token": accessToken,
+      ...(appConnection.credentials.namespace ? { "X-Vault-Namespace": appConnection.credentials.namespace } : {})
+    }
+  });
+
+  const mounts: string[] = [];
+
+  // Filter for "kv" version 2 type only
+  Object.entries(data.data).forEach(([path, mount]) => {
+    if (mount.type === "kv" && mount.options?.version === "2") {
+      mounts.push(path);
+    }
+  });
+
+  return mounts;
+};

backend/src/services/app-connection/hc-vault/hc-vault-connection-schemas.ts

@@ -0,0 +1,100 @@
+import z from "zod";
+
+import { AppConnections } from "@app/lib/api-docs";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import {
+  BaseAppConnectionSchema,
+  GenericCreateAppConnectionFieldsSchema,
+  GenericUpdateAppConnectionFieldsSchema
+} from "@app/services/app-connection/app-connection-schemas";
+
+import { HCVaultConnectionMethod } from "./hc-vault-connection-enums";
+
+const InstanceUrlSchema = z
+  .string()
+  .trim()
+  .min(1, "Instance URL required")
+  .url("Invalid Instance URL")
+  .describe(AppConnections.CREDENTIALS.HC_VAULT.instanceUrl);
+
+const NamespaceSchema = z.string().trim().optional().describe(AppConnections.CREDENTIALS.HC_VAULT.namespace);
+
+export const HCVaultConnectionAccessTokenCredentialsSchema = z.object({
+  instanceUrl: InstanceUrlSchema,
+  namespace: NamespaceSchema,
+  accessToken: z
+    .string()
+    .trim()
+    .min(1, "Access Token required")
+    .describe(AppConnections.CREDENTIALS.HC_VAULT.accessToken)
+});
+
+export const HCVaultConnectionAppRoleCredentialsSchema = z.object({
+  instanceUrl: InstanceUrlSchema,
+  namespace: NamespaceSchema,
+  roleId: z.string().trim().min(1, "Role ID required").describe(AppConnections.CREDENTIALS.HC_VAULT.roleId),
+  secretId: z.string().trim().min(1, "Secret ID required").describe(AppConnections.CREDENTIALS.HC_VAULT.secretId)
+});
+
+const BaseHCVaultConnectionSchema = BaseAppConnectionSchema.extend({ app: z.literal(AppConnection.HCVault) });
+
+export const HCVaultConnectionSchema = z.intersection(
+  BaseHCVaultConnectionSchema,
+  z.discriminatedUnion("method", [
+    z.object({
+      method: z.literal(HCVaultConnectionMethod.AccessToken),
+      credentials: HCVaultConnectionAccessTokenCredentialsSchema
+    }),
+    z.object({
+      method: z.literal(HCVaultConnectionMethod.AppRole),
+      credentials: HCVaultConnectionAppRoleCredentialsSchema
+    })
+  ])
+);
+
+export const SanitizedHCVaultConnectionSchema = z.discriminatedUnion("method", [
+  BaseHCVaultConnectionSchema.extend({
+    method: z.literal(HCVaultConnectionMethod.AccessToken),
+    credentials: HCVaultConnectionAccessTokenCredentialsSchema.pick({})
+  }),
+  BaseHCVaultConnectionSchema.extend({
+    method: z.literal(HCVaultConnectionMethod.AppRole),
+    credentials: HCVaultConnectionAppRoleCredentialsSchema.pick({})
+  })
+]);
+
+export const ValidateHCVaultConnectionCredentialsSchema = z.discriminatedUnion("method", [
+  z.object({
+    method: z
+      .literal(HCVaultConnectionMethod.AccessToken)
+      .describe(AppConnections.CREATE(AppConnection.HCVault).method),
+    credentials: HCVaultConnectionAccessTokenCredentialsSchema.describe(
+      AppConnections.CREATE(AppConnection.HCVault).credentials
+    )
+  }),
+  z.object({
+    method: z.literal(HCVaultConnectionMethod.AppRole).describe(AppConnections.CREATE(AppConnection.HCVault).method),
+    credentials: HCVaultConnectionAppRoleCredentialsSchema.describe(
+      AppConnections.CREATE(AppConnection.HCVault).credentials
+    )
+  })
+]);
+
+export const CreateHCVaultConnectionSchema = ValidateHCVaultConnectionCredentialsSchema.and(
+  GenericCreateAppConnectionFieldsSchema(AppConnection.HCVault)
+);
+
+export const UpdateHCVaultConnectionSchema = z
+  .object({
+    credentials: z
+      .union([HCVaultConnectionAccessTokenCredentialsSchema, HCVaultConnectionAppRoleCredentialsSchema])
+      .optional()
+      .describe(AppConnections.UPDATE(AppConnection.HCVault).credentials)
+  })
+  .and(GenericUpdateAppConnectionFieldsSchema(AppConnection.HCVault));
+
+export const HCVaultConnectionListItemSchema = z.object({
+  name: z.literal("HCVault"),
+  app: z.literal(AppConnection.HCVault),
+  methods: z.nativeEnum(HCVaultConnectionMethod).array()
+});

backend/src/services/app-connection/hc-vault/hc-vault-connection-service.ts

@@ -0,0 +1,30 @@
+import { logger } from "@app/lib/logger";
+import { OrgServiceActor } from "@app/lib/types";
+
+import { AppConnection } from "../app-connection-enums";
+import { listHCVaultMounts } from "./hc-vault-connection-fns";
+import { THCVaultConnection } from "./hc-vault-connection-types";
+
+type TGetAppConnectionFunc = (
+  app: AppConnection,
+  connectionId: string,
+  actor: OrgServiceActor
+) => Promise<THCVaultConnection>;
+
+export const hcVaultConnectionService = (getAppConnection: TGetAppConnectionFunc) => {
+  const listMounts = async (connectionId: string, actor: OrgServiceActor) => {
+    const appConnection = await getAppConnection(AppConnection.HCVault, connectionId, actor);
+
+    try {
+      const mounts = await listHCVaultMounts(appConnection);
+      return mounts;
+    } catch (error) {
+      logger.error(error, "Failed to establish connection with Hashicorp Vault");
+      return [];
+    }
+  };
+
+  return {
+    listMounts
+  };
+};

backend/src/services/app-connection/hc-vault/hc-vault-connection-types.ts

@@ -0,0 +1,35 @@
+import z from "zod";
+
+import { DiscriminativePick } from "@app/lib/types";
+
+import { AppConnection } from "../app-connection-enums";
+import {
+  CreateHCVaultConnectionSchema,
+  HCVaultConnectionSchema,
+  ValidateHCVaultConnectionCredentialsSchema
+} from "./hc-vault-connection-schemas";
+
+export type THCVaultConnection = z.infer<typeof HCVaultConnectionSchema>;
+
+export type THCVaultConnectionInput = z.infer<typeof CreateHCVaultConnectionSchema> & {
+  app: AppConnection.HCVault;
+};
+
+export type TValidateHCVaultConnectionCredentialsSchema = typeof ValidateHCVaultConnectionCredentialsSchema;
+
+export type TValidateHCVaultConnectionCredentials = z.infer<typeof ValidateHCVaultConnectionCredentialsSchema>;
+
+export type THCVaultConnectionConfig = DiscriminativePick<THCVaultConnectionInput, "method" | "app" | "credentials"> & {
+  orgId: string;
+};
+
+export type THCVaultMountResponse = {
+  data: {
+    [key: string]: {
+      options: {
+        version?: string | null;
+      } | null;
+      type: string; // We're only interested in "kv" types
+    };
+  };
+};

backend/src/services/app-connection/hc-vault/index.ts

@@ -0,0 +1,4 @@
+export * from "./hc-vault-connection-enums";
+export * from "./hc-vault-connection-fns";
+export * from "./hc-vault-connection-schemas";
+export * from "./hc-vault-connection-types";

backend/src/services/secret-sync/hc-vault/hc-vault-sync-constants.ts

@@ -0,0 +1,10 @@
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+import { TSecretSyncListItem } from "@app/services/secret-sync/secret-sync-types";
+
+export const HC_VAULT_SYNC_LIST_OPTION: TSecretSyncListItem = {
+  name: "Hashicorp Vault",
+  destination: SecretSync.HCVault,
+  connection: AppConnection.HCVault,
+  canImportSecrets: true
+};

backend/src/services/secret-sync/hc-vault/hc-vault-sync-fns.ts

@@ -0,0 +1,161 @@
+import { isAxiosError } from "axios";
+
+import { request } from "@app/lib/config/request";
+import { removeTrailingSlash } from "@app/lib/fn";
+import { blockLocalAndPrivateIpAddresses } from "@app/lib/validator";
+import { getHCVaultAccessToken, getHCVaultInstanceUrl } from "@app/services/app-connection/hc-vault";
+import {
+  THCVaultListVariables,
+  THCVaultListVariablesResponse,
+  THCVaultSyncWithCredentials,
+  TPostHCVaultVariable
+} from "@app/services/secret-sync/hc-vault/hc-vault-sync-types";
+import { SecretSyncError } from "@app/services/secret-sync/secret-sync-errors";
+import { TSecretMap } from "@app/services/secret-sync/secret-sync-types";
+
+const listHCVaultVariables = async ({ instanceUrl, namespace, mount, accessToken, path }: THCVaultListVariables) => {
+  await blockLocalAndPrivateIpAddresses(instanceUrl);
+
+  try {
+    const { data } = await request.get<THCVaultListVariablesResponse>(
+      `${instanceUrl}/v1/${removeTrailingSlash(mount)}/data/${path}`,
+      {
+        headers: {
+          "X-Vault-Token": accessToken,
+          ...(namespace ? { "X-Vault-Namespace": namespace } : {})
+        }
+      }
+    );
+
+    return data.data.data;
+  } catch (error: unknown) {
+    // Returning an empty set when a path isn't found allows that path to be created by a later POST request
+    if (isAxiosError(error) && error.response?.status === 404) {
+      return {};
+    }
+    throw error;
+  }
+};
+
+// Hashicorp Vault updates all variables in one batch. This is to respect their versioning
+const updateHCVaultVariables = async ({
+  path,
+  instanceUrl,
+  namespace,
+  accessToken,
+  mount,
+  data
+}: TPostHCVaultVariable) => {
+  await blockLocalAndPrivateIpAddresses(instanceUrl);
+
+  return request.post(
+    `${instanceUrl}/v1/${removeTrailingSlash(mount)}/data/${path}`,
+    {
+      data
+    },
+    {
+      headers: {
+        "X-Vault-Token": accessToken,
+        ...(namespace ? { "X-Vault-Namespace": namespace } : {}),
+        "Content-Type": "application/json"
+      }
+    }
+  );
+};
+
+export const HCVaultSyncFns = {
+  syncSecrets: async (secretSync: THCVaultSyncWithCredentials, secretMap: TSecretMap) => {
+    const {
+      connection,
+      destinationConfig: { mount, path },
+      syncOptions: { disableSecretDeletion }
+    } = secretSync;
+
+    const { namespace } = connection.credentials;
+    const accessToken = await getHCVaultAccessToken(connection);
+    const instanceUrl = await getHCVaultInstanceUrl(connection);
+
+    const variables = await listHCVaultVariables({
+      instanceUrl,
+      accessToken,
+      namespace,
+      mount,
+      path
+    });
+    let tainted = false;
+
+    for (const entry of Object.entries(secretMap)) {
+      const [key, { value }] = entry;
+      if (value !== variables[key]) {
+        variables[key] = value;
+        tainted = true;
+      }
+    }
+
+    if (disableSecretDeletion) return;
+
+    for await (const [key] of Object.entries(variables)) {
+      if (!(key in secretMap)) {
+        delete variables[key];
+        tainted = true;
+      }
+    }
+
+    // Only update variables if there was a change detected
+    if (!tainted) return;
+
+    try {
+      await updateHCVaultVariables({ accessToken, instanceUrl, namespace, mount, path, data: variables });
+    } catch (error) {
+      throw new SecretSyncError({
+        error
+      });
+    }
+  },
+  removeSecrets: async (secretSync: THCVaultSyncWithCredentials, secretMap: TSecretMap) => {
+    const {
+      connection,
+      destinationConfig: { mount, path }
+    } = secretSync;
+
+    const { namespace } = connection.credentials;
+    const accessToken = await getHCVaultAccessToken(connection);
+    const instanceUrl = await getHCVaultInstanceUrl(connection);
+
+    const variables = await listHCVaultVariables({ instanceUrl, namespace, accessToken, mount, path });
+
+    for await (const [key] of Object.entries(variables)) {
+      if (key in secretMap) {
+        delete variables[key];
+      }
+    }
+
+    try {
+      await updateHCVaultVariables({ accessToken, instanceUrl, namespace, mount, path, data: variables });
+    } catch (error) {
+      throw new SecretSyncError({
+        error
+      });
+    }
+  },
+  getSecrets: async (secretSync: THCVaultSyncWithCredentials) => {
+    const {
+      connection,
+      destinationConfig: { mount, path }
+    } = secretSync;
+
+    const { namespace } = connection.credentials;
+    const accessToken = await getHCVaultAccessToken(connection);
+    const instanceUrl = await getHCVaultInstanceUrl(connection);
+
+    const variables = await listHCVaultVariables({
+      instanceUrl,
+      namespace,
+      accessToken,
+      mount,
+      path
+    });
+
+    return Object.fromEntries(Object.entries(variables).map(([key, value]) => [key, { value }]));
+  }
+};

backend/src/services/secret-sync/hc-vault/hc-vault-sync-schemas.ts

@@ -0,0 +1,58 @@
+import RE2 from "re2";
+import { z } from "zod";
+
+import { SecretSyncs } from "@app/lib/api-docs";
+import { AppConnection } from "@app/services/app-connection/app-connection-enums";
+import { SecretSync } from "@app/services/secret-sync/secret-sync-enums";
+import {
+  BaseSecretSyncSchema,
+  GenericCreateSecretSyncFieldsSchema,
+  GenericUpdateSecretSyncFieldsSchema
+} from "@app/services/secret-sync/secret-sync-schemas";
+import { TSyncOptionsConfig } from "@app/services/secret-sync/secret-sync-types";
+
+const HCVaultSyncDestinationConfigSchema = z.object({
+  mount: z
+    .string()
+    .trim()
+    .min(1, "Secrets Engine Mount required")
+    .describe(SecretSyncs.DESTINATION_CONFIG.HC_VAULT.mount),
+  path: z
+    .string()
+    .trim()
+    .min(1, "Path required")
+    .transform((val) => val.replace(/^\/+|\/+$/g, "")) // removes leading/trailing slashes
+    .refine((val) => new RE2("^([a-zA-Z0-9._-]+/)*[a-zA-Z0-9._-]+$").test(val), {
+      message:
+        "Invalid Vault path format. Use alphanumerics, dots, dashes, underscores, and single slashes between segments."
+    })
+    .describe(SecretSyncs.DESTINATION_CONFIG.HC_VAULT.path)
+});
+
+const HCVaultSyncOptionsConfig: TSyncOptionsConfig = { canImportSecrets: true };
+
+export const HCVaultSyncSchema = BaseSecretSyncSchema(SecretSync.HCVault, HCVaultSyncOptionsConfig).extend({
+  destination: z.literal(SecretSync.HCVault),
+  destinationConfig: HCVaultSyncDestinationConfigSchema
+});
+
+export const CreateHCVaultSyncSchema = GenericCreateSecretSyncFieldsSchema(
+  SecretSync.HCVault,
+  HCVaultSyncOptionsConfig
+).extend({
+  destinationConfig: HCVaultSyncDestinationConfigSchema
+});
+
+export const UpdateHCVaultSyncSchema = GenericUpdateSecretSyncFieldsSchema(
+  SecretSync.HCVault,
+  HCVaultSyncOptionsConfig
+).extend({
+  destinationConfig: HCVaultSyncDestinationConfigSchema.optional()
+});
+
+export const HCVaultSyncListItemSchema = z.object({
+  name: z.literal("Hashicorp Vault"),
+  connection: z.literal(AppConnection.HCVault),
+  destination: z.literal(SecretSync.HCVault),
+  canImportSecrets: z.literal(true)
+});

backend/src/services/secret-sync/hc-vault/hc-vault-sync-types.ts

@@ -0,0 +1,39 @@
+import { z } from "zod";
+
+import { THCVaultConnection } from "@app/services/app-connection/hc-vault";
+
+import { CreateHCVaultSyncSchema, HCVaultSyncListItemSchema, HCVaultSyncSchema } from "./hc-vault-sync-schemas";
+
+export type THCVaultSync = z.infer<typeof HCVaultSyncSchema>;
+
+export type THCVaultSyncInput = z.infer<typeof CreateHCVaultSyncSchema>;
+
+export type THCVaultSyncListItem = z.infer<typeof HCVaultSyncListItemSchema>;
+
+export type THCVaultSyncWithCredentials = THCVaultSync & {
+  connection: THCVaultConnection;
+};
+
+export type THCVaultListVariablesResponse = {
+  data: {
+    data: {
+      [key: string]: string;
+    };
+  };
+};
+
+export type THCVaultListVariables = {
+  accessToken: string;
+  instanceUrl: string;
+  namespace?: string;
+  mount: string;
+  path: string;
+};
+
+export type TPostHCVaultVariable = THCVaultListVariables & {
+  data: {
+    [key: string]: string;
+  };
+};
+
+export type TDeleteHCVaultVariable = THCVaultListVariables;

backend/src/services/secret-sync/hc-vault/index.ts

@@ -0,0 +1,4 @@
+export * from "./hc-vault-sync-constants";
+export * from "./hc-vault-sync-fns";
+export * from "./hc-vault-sync-schemas";
+export * from "./hc-vault-sync-types";

backend/src/services/secret-sync/secret-sync-enums.ts

@@ -11,6 +11,7 @@ export enum SecretSync {
   Camunda = "camunda",
   Vercel = "vercel",
   Windmill = "windmill",
+  HCVault = "hashicorp-vault",
   TeamCity = "teamcity"
 }
 

backend/src/services/secret-sync/secret-sync-fns.ts

@@ -25,6 +25,7 @@ import { AZURE_KEY_VAULT_SYNC_LIST_OPTION, azureKeyVaultSyncFactory } from "./az
 import { CAMUNDA_SYNC_LIST_OPTION, camundaSyncFactory } from "./camunda";
 import { GCP_SYNC_LIST_OPTION } from "./gcp";
 import { GcpSyncFns } from "./gcp/gcp-sync-fns";
+import { HC_VAULT_SYNC_LIST_OPTION, HCVaultSyncFns } from "./hc-vault";
 import { HUMANITEC_SYNC_LIST_OPTION } from "./humanitec";
 import { HumanitecSyncFns } from "./humanitec/humanitec-sync-fns";
 import { TEAMCITY_SYNC_LIST_OPTION, TeamCitySyncFns } from "./teamcity";
@@ -45,6 +46,7 @@ const SECRET_SYNC_LIST_OPTIONS: Record<SecretSync, TSecretSyncListItem> = {
   [SecretSync.Camunda]: CAMUNDA_SYNC_LIST_OPTION,
   [SecretSync.Vercel]: VERCEL_SYNC_LIST_OPTION,
   [SecretSync.Windmill]: WINDMILL_SYNC_LIST_OPTION,
+  [SecretSync.HCVault]: HC_VAULT_SYNC_LIST_OPTION,
   [SecretSync.TeamCity]: TEAMCITY_SYNC_LIST_OPTION
 };
 
@@ -142,6 +144,8 @@ export const SecretSyncFns = {
         return VercelSyncFns.syncSecrets(secretSync, secretMap);
       case SecretSync.Windmill:
         return WindmillSyncFns.syncSecrets(secretSync, secretMap);
+      case SecretSync.HCVault:
+        return HCVaultSyncFns.syncSecrets(secretSync, secretMap);
       case SecretSync.TeamCity:
         return TeamCitySyncFns.syncSecrets(secretSync, secretMap);
       default:
@@ -203,6 +207,9 @@ export const SecretSyncFns = {
       case SecretSync.Windmill:
         secretMap = await WindmillSyncFns.getSecrets(secretSync);
         break;
+      case SecretSync.HCVault:
+        secretMap = await HCVaultSyncFns.getSecrets(secretSync);
+        break;
       case SecretSync.TeamCity:
         secretMap = await TeamCitySyncFns.getSecrets(secretSync);
         break;
@@ -259,6 +266,8 @@ export const SecretSyncFns = {
         return VercelSyncFns.removeSecrets(secretSync, secretMap);
       case SecretSync.Windmill:
         return WindmillSyncFns.removeSecrets(secretSync, secretMap);
+      case SecretSync.HCVault:
+        return HCVaultSyncFns.removeSecrets(secretSync, secretMap);
       case SecretSync.TeamCity:
         return TeamCitySyncFns.removeSecrets(secretSync, secretMap);
       default:

backend/src/services/secret-sync/secret-sync-maps.ts

@@ -14,6 +14,7 @@ export const SECRET_SYNC_NAME_MAP: Record<SecretSync, string> = {
   [SecretSync.Camunda]: "Camunda",
   [SecretSync.Vercel]: "Vercel",
   [SecretSync.Windmill]: "Windmill",
+  [SecretSync.HCVault]: "Hashicorp Vault",
   [SecretSync.TeamCity]: "TeamCity"
 };
 
@@ -30,5 +31,6 @@ export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
   [SecretSync.Camunda]: AppConnection.Camunda,
   [SecretSync.Vercel]: AppConnection.Vercel,
   [SecretSync.Windmill]: AppConnection.Windmill,
+  [SecretSync.HCVault]: AppConnection.HCVault,
   [SecretSync.TeamCity]: AppConnection.TeamCity
 };

backend/src/services/secret-sync/secret-sync-types.ts

@@ -55,6 +55,12 @@ import {
   TAzureKeyVaultSyncWithCredentials
 } from "./azure-key-vault";
 import { TGcpSync, TGcpSyncInput, TGcpSyncListItem, TGcpSyncWithCredentials } from "./gcp";
+import {
+  THCVaultSync,
+  THCVaultSyncInput,
+  THCVaultSyncListItem,
+  THCVaultSyncWithCredentials
+} from "./hc-vault/hc-vault-sync-types";
 import {
   THumanitecSync,
   THumanitecSyncInput,
@@ -88,6 +94,7 @@ export type TSecretSync =
   | TCamundaSync
   | TVercelSync
   | TWindmillSync
+  | THCVaultSync
   | TTeamCitySync;
 
 export type TSecretSyncWithCredentials =
@@ -103,6 +110,7 @@ export type TSecretSyncWithCredentials =
   | TCamundaSyncWithCredentials
   | TVercelSyncWithCredentials
   | TWindmillSyncWithCredentials
+  | THCVaultSyncWithCredentials
   | TTeamCitySyncWithCredentials;
 
 export type TSecretSyncInput =
@@ -118,6 +126,7 @@ export type TSecretSyncInput =
   | TCamundaSyncInput
   | TVercelSyncInput
   | TWindmillSyncInput
+  | THCVaultSyncInput
   | TTeamCitySyncInput;
 
 export type TSecretSyncListItem =
@@ -133,6 +142,7 @@ export type TSecretSyncListItem =
   | TCamundaSyncListItem
   | TVercelSyncListItem
   | TWindmillSyncListItem
+  | THCVaultSyncListItem
   | TTeamCitySyncListItem;
 
 export type TSyncOptionsConfig = {

backend/src/services/secret-v2-bridge/secret-v2-bridge-dal.ts

@@ -7,6 +7,7 @@ import { ProjectType, SecretsV2Schema, SecretType, TableName, TSecretsV2, TSecre
 import { TKeyStoreFactory } from "@app/keystore/keystore";
 import { getConfig } from "@app/lib/config/env";
 import { generateCacheKeyFromData } from "@app/lib/crypto/cache";
+import { applyJitter } from "@app/lib/dates";
 import { BadRequestError, DatabaseError, NotFoundError } from "@app/lib/errors";
 import {
   buildFindFilter,
@@ -22,7 +23,6 @@ import type {
   TFindSecretsByFolderIdsFilter,
   TGetSecretsDTO
 } from "@app/services/secret-v2-bridge/secret-v2-bridge-types";
-import { applyJitter } from "@app/lib/dates";
 
 export const SecretServiceCacheKeys = {
   get productKey() {

docs/api-reference/endpoints/app-connections/hashicorp-vault/available.mdx

@@ -0,0 +1,4 @@
+---
+title: "Available"
+openapi: "GET /api/v1/app-connections/hashicorp-vault/available"
+---

docs/api-reference/endpoints/app-connections/hashicorp-vault/create.mdx

@@ -0,0 +1,8 @@
+---
+title: "Create"
+openapi: "POST /api/v1/app-connections/hashicorp-vault"
+---
+
+<Note>
+    Check out the configuration docs for [Hashicorp Vault Connections](/integrations/app-connections/hashicorp-vault) to learn how to obtain the required credentials.
+</Note>

docs/api-reference/endpoints/app-connections/hashicorp-vault/delete.mdx

@@ -0,0 +1,4 @@
+---
+title: "Delete"
+openapi: "DELETE /api/v1/app-connections/hashicorp-vault/{connectionId}"
+---

docs/api-reference/endpoints/app-connections/hashicorp-vault/get-by-id.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by ID"
+openapi: "GET /api/v1/app-connections/hashicorp-vault/{connectionId}"
+---

docs/api-reference/endpoints/app-connections/hashicorp-vault/get-by-name.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by Name"
+openapi: "GET /api/v1/app-connections/hashicorp-vault/connection-name/{connectionName}"
+---

docs/api-reference/endpoints/app-connections/hashicorp-vault/list.mdx

@@ -0,0 +1,4 @@
+---
+title: "List"
+openapi: "GET /api/v1/app-connections/hashicorp-vault"
+---

docs/api-reference/endpoints/app-connections/hashicorp-vault/update.mdx

@@ -0,0 +1,8 @@
+---
+title: "Update"
+openapi: "PATCH /api/v1/app-connections/hashicorp-vault/{connectionId}"
+---
+
+<Note>
+    Check out the configuration docs for [Hashicorp Vault Connections](/integrations/app-connections/hashicorp-vault) to learn how to obtain the required credentials.
+</Note>

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/create.mdx

@@ -0,0 +1,4 @@
+---
+title: "Create"
+openapi: "POST /api/v1/secret-syncs/hashicorp-vault"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/delete.mdx

@@ -0,0 +1,4 @@
+---
+title: "Delete"
+openapi: "DELETE /api/v1/secret-syncs/hashicorp-vault/{syncId}"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/get-by-id.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by ID"
+openapi: "GET /api/v1/secret-syncs/hashicorp-vault/{syncId}"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/get-by-name.mdx

@@ -0,0 +1,4 @@
+---
+title: "Get by Name"
+openapi: "GET /api/v1/secret-syncs/hashicorp-vault/sync-name/{syncName}"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/import-secrets.mdx

@@ -0,0 +1,4 @@
+---
+title: "Import Secrets"
+openapi: "POST /api/v1/secret-syncs/hashicorp-vault/{syncId}/import-secrets"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/list.mdx

@@ -0,0 +1,4 @@
+---
+title: "List"
+openapi: "GET /api/v1/secret-syncs/hashicorp-vault"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/remove-secrets.mdx

@@ -0,0 +1,4 @@
+---
+title: "Remove Secrets"
+openapi: "POST /api/v1/secret-syncs/hashicorp-vault/{syncId}/remove-secrets"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/sync-secrets.mdx

@@ -0,0 +1,4 @@
+---
+title: "Sync Secrets"
+openapi: "POST /api/v1/secret-syncs/hashicorp-vault/{syncId}/sync-secrets"
+---

docs/api-reference/endpoints/secret-syncs/hashicorp-vault/update.mdx

@@ -0,0 +1,4 @@
+---
+title: "Update"
+openapi: "PATCH /api/v1/secret-syncs/hashicorp-vault/{syncId}"
+---

docs/integrations/app-connections/hashicorp-vault.mdx

@@ -0,0 +1,214 @@
+---
+title: "Hashicorp Vault Connection"
+description: "Learn how to configure a Hashicorp Vault Connection for Infisical."
+---
+
+<Note>
+    Infisical is compatible with Vault Self-hosted, HCP Vault Dedicated, and HCP Vault Enterprise deployments. Please note that HCP Generic Secrets are currently not supported.
+</Note>
+
+Infisical supports two methods for connecting to Hashicorp Vault.
+
+<Tabs>
+    <Tab title="App Role (Recommended)">
+        <Steps>
+            <Step title="Navigate to Vault Access">
+                ![Vault Access](/images/app-connections/hashicorp-vault/vault-access.png)
+            </Step>
+            <Step title="Enable New Method">
+                In the **Authentication Methods** tab, click on **Enable new method**.
+
+                ![Vault Enable Method](/images/app-connections/hashicorp-vault/vault-authentication-methods.png)
+            </Step>
+            <Step title="Select AppRole">
+                ![Vault AppRole](/images/app-connections/hashicorp-vault/vault-approle.png)
+            </Step>
+            <Step title="Enable Method">
+                You may change the name of the method, but we suggest keeping it as `approle`.
+
+                ![Vault Enable Method](/images/app-connections/hashicorp-vault/vault-enable-method.png)
+            </Step>
+            <Step title="Navigate to Vault Policies">
+                From the home page, navigate to **Policies**.
+
+                ![Vault Policies Navigate](/images/app-connections/hashicorp-vault/vault-policies-navigate.png)
+            </Step>
+            <Step title="Create ACL Policy">
+                ![Vault Policies Page](/images/app-connections/hashicorp-vault/vault-policies-page.png)
+            </Step>
+            <Step title="Create Policy">
+                You may name your policy whatever you want, but remember the name as it will be used in future steps.
+
+                Depending on your use case, you may have different policy configurations:
+
+                <Tabs>
+                    <Tab title="Secret Sync">
+                        ```hcl
+                        path "demo_mount/data/*" {
+                          capabilities = [ "create", "read", "update" ]
+                        }
+
+                        path "sys/mounts" {
+                          capabilities = ["read"]
+                        }
+                        ```
+
+                        - **demo_mount**: The name of the target secrets engine (e.g., 'secret', 'kv').
+                        - **data/\***: The path within the secrets engine used for storing secrets. The wildcard (*) grants access to all secrets within this mount point.
+
+                        <Note>
+                            Make sure to replace the policy path with the specific path where you intend to sync your secrets. For better security and control, it's recommended to use a more granular path instead of a wildcard (*). You can also specify a path that doesn’t yet exist—Infisical will automatically create it for you during the sync process.
+                        </Note>
+                    </Tab>
+                </Tabs>
+
+                ![Vault Create Policy](/images/app-connections/hashicorp-vault/vault-create-policy.png)
+            </Step>
+            <Step title="Run Shell Commands">
+                **Open Vault Shell**
+
+                ![Vault Shell](/images/app-connections/hashicorp-vault/vault-shell.png)
+
+                <Note>
+                    If you used custom approle or policy names in previous steps, you'll need to customize the following commands.
+                </Note>
+
+                **Create Infisical Role**
+
+                ```hcl
+                vault write auth/approle/role/infisical token_policies="infisical-policy" token_ttl=30s token_max_ttl=2m
+                ```
+
+                **Read RoleID**
+
+                ```hcl
+                vault read auth/approle/role/infisical/role-id
+                ```
+
+                **Generate New SecretID**
+
+                ```hcl
+                vault write -force auth/approle/role/infisical/secret-id
+                ```
+
+                Your shell output should look similar to the image below. Save the RoleID and SecretID values for later steps.
+
+                ![Vault Shell Output](/images/app-connections/hashicorp-vault/vault-shell-output.png)
+            </Step>
+        </Steps>
+    </Tab>
+    <Tab title="Access Token">
+        ## Get a Hashicorp Vault Access Token
+
+        Open your profile dropdown and click **Copy token**. This token will be used in later steps.
+
+        ![Vault Profile Copy Token](/images/app-connections/hashicorp-vault/vault-profile-token.png)
+    </Tab>
+</Tabs>
+
+## Getting Vault Instance URL
+
+<Tabs>
+<Tab title="Self Hosted">
+    For self-hosted instances, locate and copy your vault's base URL (for example: `https://vault.example.com`).
+
+    Save the URL for later steps.
+</Tab>
+    <Tab title="Hashicorp Cloud Platform">
+        On HCP instances, you may need to navigate to **Cluster Overview** to see your cluster URL. Save this value for later steps.
+
+        ![Vault Cluster URLs](/images/app-connections/hashicorp-vault/vault-cluster-urls.png)
+
+        <Note>
+            Cluster Overview is found in the HCP dashboard, not in your cluster's web UI.
+        </Note>
+    </Tab>
+</Tabs>
+
+## Setup Vault Connection in Infisical
+
+<Tabs>
+    <Tab title="Infisical UI">
+        <Steps>
+            <Step title="Navigate to App Connections">
+                In your Infisical dashboard, go to **Organization Settings** and select the **App Connections** tab.
+
+                ![App Connections Tab](/images/app-connections/general/add-connection.png)
+            </Step>
+            <Step title="Add Connection">
+                Click the **+ Add Connection** button and select the **Hashicorp Vault Connection** option.
+
+                ![Select Vault Connection](/images/app-connections/hashicorp-vault/vault-infisical-connect-page.png)
+            </Step>
+            <Step title="Configure Connection">
+                Configure your Vault Connection using the Instance URL and credentials from the steps above. **Depending on if you chose to authenticate with an Access Token or AppRole, you may need to input different information.**
+
+                ![Vault Configure Connection](/images/app-connections/hashicorp-vault/vault-infisical-connect-modal.png)
+
+                <Tabs>
+                    <Tab title="App Role">
+                        - **Name**: The name of the connection being created. Must be slug-friendly.
+                        - **Description**: An optional description to provide details about this connection.
+                        - **Instance URL**: The URL of your Hashicorp Vault instance.
+                        - **Namespace (optional)**: The namespace within your vault. Self-hosted and enterprise clusters may not use namespaces.
+                        - **Role ID**: The Role ID generated in the steps above.
+                        - **Secret ID**: The Secret ID generated in the steps above.
+                    </Tab>
+                    <Tab title="Access Token">
+                        - **Name**: The name of the connection being created. Must be slug-friendly.
+                        - **Description**: An optional description to provide details about this connection.
+                        - **Instance URL**: The URL of your Hashicorp Vault instance.
+                        - **Namespace (optional)**: The namespace within your vault. Self-hosted and enterprise clusters may not use namespaces.
+                        - **Access Token**: The Access Token generated in the steps above.
+                    </Tab>
+                </Tabs>
+            </Step>
+            <Step title="Connection Created">
+                Your Vault Connection is now available for use.
+                ![Vault Connection Created](/images/app-connections/hashicorp-vault/vault-infisical-connect-success.png)
+            </Step>
+        </Steps>
+    </Tab>
+    <Tab title="API">
+        To create a Vault Connection, make an API request to the [Create Hashicorp Vault
+        Connection](/api-reference/endpoints/app-connections/hashicorp-vault/create) API endpoint.
+
+        ### Sample request
+
+        ```bash Request
+        curl    --request POST \
+                --url https://app.infisical.com/api/v1/app-connections/hashicorp-vault \
+                --header 'Content-Type: application/json' \
+                --data '{
+                    "name": "my-vault-connection",
+                    "method": "app-role",
+                    "credentials": {
+                        "instanceUrl": "https://vault.example.com",
+                        "roleId": "4797c4fa-7794-71f0-c8b1-7c87759df5bf",
+                        "secretId": "ad24df93-19c8-c865-9997-6b8513253d3a"
+                    }
+                }'
+        ```
+
+        ### Sample response
+
+        ```bash Response
+        {
+            "appConnection": {
+                "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "name": "my-vault-connection",
+                "version": 1,
+                "orgId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "createdAt": "2025-04-01T05:31:56Z",
+                "updatedAt": "2025-04-01T05:31:56Z",
+                "app": "hashicorp-vault",
+                "method": "app-role",
+                "credentials": {
+                    "instanceUrl": "https://vault.example.com",
+                    "roleId": "4797c4fa-7794-71f0-c8b1-7c87759df5bf"
+                }
+            }
+        }
+        ```
+    </Tab>
+</Tabs>

docs/integrations/cloud/hashicorp-vault.mdx

@@ -4,158 +4,5 @@ description: "How to sync secrets from Infisical to HashiCorp Vault"
 ---
 
 <Note>
-    Infisical connects to Vault via the AppRole auth method. 
-    
-    Currently, each Infisical project can only point and sync secrets to one Vault cluster / namespace
-    but with unlimited integrations to different paths within it.
-
-    This tutorial makes use of Vault's UI but, in principle, instructions can executed via
-    Vault CLI or API call.
-    
-    Lastly, you should note that we provide a simple use-case and, in practice, you should adapt and extend it to your own Vault use-case and follow best practices, for instance when defining fine-grained ACL policies.
+    The Hashicorp Vault Native Integration will be deprecated in 2026. Please migrate to our new [Hashicorp Vault Sync](../secret-syncs/hashicorp-vault).
 </Note>
-
-Prerequisites:
-
-- Set up and add envars to [Infisical Cloud](https://app.infisical.com)
-- Have experience with [HashiCorp Vault](https://www.vaultproject.io/).
-
-## Navigate to your project's integrations tab
-
-![integrations](../../images/integrations.png)
-
-## Prepare Vault
-
-This section mirrors the latter parts of the [Vault quickstart](https://developer.hashicorp.com/vault/tutorials/cloud/getting-started-intro) provided by HashiCorp and uses sample names/values for demonstration.
-
-To begin, navigate to the cluster / namespace that you want to sync secrets to in Vault; we'll use the default `admin` namespace (in practice, we recommend creating a namespace and not using the default `admin` namespace).
-
-### Enable KV Secrets Engine
-
-In Secrets, enable a KV Secrets Engine at a path for Infisical to sync secrets to; we'll use the path `kv`.
-
-![integrations hashicorp vault secrets engine](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-engine-1.png)
-![integrations hashicorp vault secrets engine](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-engine-2.png)
-![integrations hashicorp vault secrets engine](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-engine-3.png)
-
-### Enable the AppRole auth method
-
-In Access > Auth Methods, enable the AppRole auth method.
-
-![integrations hashicorp vault access](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-access-1.png)
-![integrations hashicorp vault access](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-access-2.png)
-![integrations hashicorp vault access](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-access-3.png)
-
-### Create an ACL Policy
-
-Now in Policies, create a new ACL policy scoped to the path(s) you wish Infisical to be able to sync secrets to.
-
-We'll call the policy `test` and have it grant access to the `dev` path in the KV Secrets Engine where we will be syncing secrets to from Infisical.
-
-```console
-path "kv/data/dev" {
-  capabilities = [ "create", "read", "update" ]
-}
-
-path "sys/namespaces/*" {
-   capabilities = [ "create", "read", "update", "delete", "list" ]
-}
-```
-
-<Note>
-    `kv` comes from the path of the KV Secrets Engine that we enabled and `dev` is the chosen path within it
-    that we want to sync secrets to.
-</Note>
-
-![integrations hashicorp vault policy](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-policy-1.png)
-![integrations hashicorp vault policy](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-policy-2.png)
-![integrations hashicorp vault policy](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-policy-3.png)
-
-### Create a role with the policy attached
-
-We now create a `infisical` role with the generated token's time-to-live (TTL) set to 1 hour and can be renewed for up to 4 hours from the time of its creation.
-
-1. Click the Vault CLI shell icon (`>_`) to open a command shell in the browser.
-
-![integrations hashicorp vault shell](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-shell.png)
-
-2. Copy the command below.
-
-```console
-vault write auth/approle/role/infisical token_policies="test" token_ttl=1h token_max_ttl=4h
-```
-
-3. Paste the command into the command shell in the browser and press the enter button.
-
-### Generate a RoleID and SecretID
-
-Finally, we need to generate a **RoleID** and **SecretID** (like a username and password) that Infisical can use
-to authenticate with Vault.
-
-1. Click the Vault CLI shell icon (>_) again to open a command shell.
-
-2. Read the RoleID.
-
-```console
-vault read auth/approle/role/infisical/role-id
-```
-
-Example output:
-
-```console
-Key     Value
-role_id b6ccdcca-183b-ce9c-6b98-b556b9a0edb9
-```
-
-3. Generate a new SecretID of the `infisical` role.
-
-```console
-vault write -force auth/approle/role/infisical/secret-id
-```
-
-Example output:
-
-
-```console
-Key                Value
-secret_id          735a47cc-7a98-77cc-0128-12b1e96a4157
-secret_id_accessor 3ab305d1-1eab-df4b-4079-ef7135635c49
-...snip...
-```
-
-Great. We're now ready to connect Infisical to Vault!
-
-## Enter your Vault instance and authentication details
-
-Back in Infisical, press on the HashiCorp Vault tile and input your Vault instance and `infisical` role RoleID and SecretID.
-
-![integrations hashicorp vault authorization](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-auth.png)
-
-For additional details on each field:
-
-- Vault Cluster URL: The address of your cluster, either HCP or self-hosted.
-
-If using HCP, you can copy your Cluster URL in the Cluster Overview:
-
-![integrations hashicorp vault cluster URL](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-cluster-url.png)
-
-- Vault Namespace: The Vault namespace you wish to connect to.
-- Vault RoleID: The RoleID previously created for the `infisical` role.
-- Vault SecretID: The SecretID previously created for the `infisical` role.
-
-## Start integration
-
-Select which Infisical environment secrets you want to sync to Vault.
-
-For additional details on each field:
-
-- Vault KV Secrets Engine Path: the path at which you enabled the intended KV Secrets Engine; in this demonstration, we used `kv`.
-- Vault Secret(s) Path: the path in the KV Secrets Engine that you wish to sync secrets to.
-
-Press create integration to start syncing secrets to Vault.
-
-![integrations hashicorp vault](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault-create.png)
-![integrations hashicorp vault](../../images/integrations/hashicorp-vault/integrations-hashicorp-vault.png)
-
-
-

docs/integrations/secret-syncs/hashicorp-vault.mdx

@@ -0,0 +1,160 @@
+---
+title: "Hashicorp Vault Sync"
+description: "Learn how to configure a Hashicorp Vault Sync for Infisical."
+---
+
+**Prerequisites:**
+    - Set up and add secrets to [Infisical Cloud](https://app.infisical.com)
+    - Create a [Hashicorp Vault Connection](/integrations/app-connections/hashicorp-vault)
+
+<Tabs>
+    <Tab title="Infisical UI">
+        <Steps>
+            <Step title="Add Sync">
+                Navigate to **Project** > **Integrations** and select the **Secret Syncs** tab. Click on the **Add Sync** button.
+
+                ![Secret Syncs Tab](/images/secret-syncs/general/secret-sync-tab.png)
+            </Step>
+            <Step title="Select Hashicorp Vault">
+                ![Select Hashicorp Vault](/images/secret-syncs/hashicorp-vault/select-option.png)
+            </Step>
+            <Step title="Configure Source">
+                Configure the **Source** from where secrets should be retrieved, then click **Next**.
+
+                ![Configure Source](/images/secret-syncs/hashicorp-vault/sync-source.png)
+
+                - **Environment**: The project environment to retrieve secrets from.
+                - **Secret Path**: The folder path to retrieve secrets from.
+
+                <Tip>
+                    If you need to sync secrets from multiple folder locations, check out [secret imports](/documentation/platform/secret-reference#secret-imports).
+                </Tip>
+            </Step>
+            <Step title="Configure Destination">
+                Configure the **Destination** to where secrets should be deployed.
+
+                ![Configure Destination](/images/secret-syncs/hashicorp-vault/sync-destination.png)
+
+                - **Hashicorp Vault Connection**: The Vault Connection to authenticate with.
+                - **Secrets Engine Mount**: The secrets engine to sync secrets with (e.g., 'secret', 'kv').
+                - **Path**: The specific path within the secrets engine where secrets will be stored.
+
+                After configuring these parameters, click the **Next** button to continue to the Sync Options step.
+
+                <Note>
+                    If the **path** you provide does not exist in Vault, it will be created.
+                </Note>
+            </Step>
+            <Step title="Configure Sync Options">
+                Configure the **Sync Options** to specify how secrets should be synced, then click **Next**.
+
+                ![Configure Options](/images/secret-syncs/hashicorp-vault/sync-options.png)
+
+                - **Initial Sync Behavior**: Determines how Infisical should resolve the initial sync.
+                    - **Overwrite Destination Secrets**: Removes any secrets at the destination endpoint not present in Infisical.
+                    - **Import Secrets (Prioritize Infisical)**: Imports secrets from the destination endpoint before syncing, prioritizing values from Infisical over Hashicorp Vault when keys conflict.
+                    - **Import Secrets (Prioritize Hashicorp Vault)**: Imports secrets from the destination endpoint before syncing, prioritizing values from Hashicorp Vault over Infisical when keys conflict.
+                - **Auto-Sync Enabled**: If enabled, secrets will automatically be synced from the source location when changes occur. Disable to enforce manual syncing only.
+                - **Disable Secret Deletion**: If enabled, Infisical will not remove secrets from the sync destination. Enable this option if you intend to manage some secrets manually outside of Infisical.
+            </Step>
+            <Step title="Configure Details">
+                Configure the **Details** of your Hashicorp Vault Sync, then click **Next**.
+
+                ![Configure Details](/images/secret-syncs/hashicorp-vault/sync-details.png)
+
+                - **Name**: The name of your sync. Must be slug-friendly.
+                - **Description**: An optional description for your sync.
+            </Step>
+            <Step title="Review Configuration">
+                Review your Hashicorp Vault Sync configuration, then click **Create Sync**.
+
+                ![Confirm Configuration](/images/secret-syncs/hashicorp-vault/sync-review.png)
+            </Step>
+            <Step title="Sync Created">
+                If enabled, your Hashicorp Vault Sync will begin syncing your secrets to the destination endpoint.
+
+                ![Sync Created](/images/secret-syncs/hashicorp-vault/sync-created.png)
+            </Step>
+        </Steps>
+    </Tab>
+    <Tab title="API">
+        To create an **Hashicorp Vault Sync**, make an API request to the [Create Hashicorp Vault Sync](/api-reference/endpoints/secret-syncs/hashicorp-vault/create) API endpoint.
+
+        ### Sample request
+
+        ```bash Request
+        curl    --request POST \
+                --url https://app.infisical.com/api/v1/secret-syncs/hashicorp-vault \
+                --header 'Content-Type: application/json' \
+                --data '{
+                    "name": "my-vault-sync",
+                    "projectId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                    "description": "an example sync",
+                    "connectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                    "environment": "dev",
+                    "secretPath": "/",
+                    "isEnabled": true,
+                    "syncOptions": {
+                        "initialSyncBehavior": "overwrite-destination"
+                    },
+                    "destinationConfig": {
+                        "mount": "secret",
+                        "path": "dev/nested"
+                    }
+                }'
+        ```
+
+        ### Sample response
+
+        ```bash Response
+        {
+            "secretSync": {
+                "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "name": "my-vault-sync",
+                "description": "an example sync",
+                "isEnabled": true,
+                "version": 1,
+                "folderId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "connectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "createdAt": "2023-11-07T05:31:56Z",
+                "updatedAt": "2023-11-07T05:31:56Z",
+                "syncStatus": "succeeded",
+                "lastSyncJobId": "123",
+                "lastSyncMessage": null,
+                "lastSyncedAt": "2023-11-07T05:31:56Z",
+                "importStatus": null,
+                "lastImportJobId": null,
+                "lastImportMessage": null,
+                "lastImportedAt": null,
+                "removeStatus": null,
+                "lastRemoveJobId": null,
+                "lastRemoveMessage": null,
+                "lastRemovedAt": null,
+                "syncOptions": {
+                    "initialSyncBehavior": "overwrite-destination"
+                },
+                "projectId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                "connection": {
+                    "app": "hashicorp-vault",
+                    "name": "my-vault-connection",
+                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
+                },
+                "environment": {
+                    "slug": "dev",
+                    "name": "Development",
+                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
+                },
+                "folder": {
+                    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
+                    "path": "/"
+                },
+                "destination": "hashicorp-vault",
+                "destinationConfig": {
+                    "mount": "secret",
+                    "path": "dev/nested"
+                }
+            }
+        }
+        ```
+    </Tab>
+</Tabs>

docs/mint.json

@@ -438,6 +438,7 @@
             "integrations/app-connections/databricks",
             "integrations/app-connections/gcp",
             "integrations/app-connections/github",
+            "integrations/app-connections/hashicorp-vault",
             "integrations/app-connections/humanitec",
             "integrations/app-connections/ldap",
             "integrations/app-connections/mssql",
@@ -465,6 +466,7 @@
             "integrations/secret-syncs/databricks",
             "integrations/secret-syncs/gcp-secret-manager",
             "integrations/secret-syncs/github",
+            "integrations/secret-syncs/hashicorp-vault",
             "integrations/secret-syncs/humanitec",
             "integrations/secret-syncs/teamcity",
             "integrations/secret-syncs/terraform-cloud",
@@ -1068,6 +1070,18 @@
                 "api-reference/endpoints/app-connections/github/delete"
               ]
             },
+            {
+              "group": "Hashicorp Vault",
+              "pages": [
+                "api-reference/endpoints/app-connections/hashicorp-vault/list",
+                "api-reference/endpoints/app-connections/hashicorp-vault/available",
+                "api-reference/endpoints/app-connections/hashicorp-vault/get-by-id",
+                "api-reference/endpoints/app-connections/hashicorp-vault/get-by-name",
+                "api-reference/endpoints/app-connections/hashicorp-vault/create",
+                "api-reference/endpoints/app-connections/hashicorp-vault/update",
+                "api-reference/endpoints/app-connections/hashicorp-vault/delete"
+              ]
+            },
             {
               "group": "Humanitec",
               "pages": [
@@ -1280,6 +1294,20 @@
                 "api-reference/endpoints/secret-syncs/github/remove-secrets"
               ]
             },
+            {
+              "group": "Hashicorp Vault",
+              "pages": [
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/list",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/get-by-id",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/get-by-name",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/create",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/update",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/delete",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/sync-secrets",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/import-secrets",
+                "api-reference/endpoints/secret-syncs/hashicorp-vault/remove-secrets"
+              ]
+            },
             {
               "group": "Humanitec",
               "pages": [

frontend/src/components/secret-syncs/forms/SecretSyncDestinationFields/HCVaultSyncFields.tsx

@@ -0,0 +1,86 @@
+import { Controller, useFormContext, useWatch } from "react-hook-form";
+import { SingleValue } from "react-select";
+import { faCircleInfo } from "@fortawesome/free-solid-svg-icons";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+
+import { SecretSyncConnectionField } from "@app/components/secret-syncs/forms/SecretSyncConnectionField";
+import { FilterableSelect, FormControl, Input, Tooltip } from "@app/components/v2";
+import { useHCVaultConnectionListMounts } from "@app/hooks/api/appConnections/hc-vault";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+
+import { TSecretSyncForm } from "../schemas";
+
+export const HCVaultSyncFields = () => {
+  const { control, setValue } = useFormContext<
+    TSecretSyncForm & { destination: SecretSync.HCVault }
+  >();
+
+  const connectionId = useWatch({ name: "connection.id", control });
+
+  const { data: mounts, isLoading: isMountsLoading } = useHCVaultConnectionListMounts(
+    connectionId,
+    {
+      enabled: Boolean(connectionId)
+    }
+  );
+
+  return (
+    <>
+      <SecretSyncConnectionField
+        onChange={() => {
+          setValue("destinationConfig.mount", "");
+          setValue("destinationConfig.path", "");
+        }}
+      />
+
+      <Controller
+        name="destinationConfig.mount"
+        control={control}
+        render={({ field: { onChange }, fieldState: { error } }) => (
+          <FormControl
+            isError={Boolean(error)}
+            errorText={error?.message}
+            label="Secrets Engine Mount"
+            helperText={
+              <Tooltip
+                className="max-w-md"
+                content="Ensure the Secrets Engine mount exists and that your App Role / Access Token has permission to access it. Infisical only supports version 2 KV Secrets Engine mounts. If you're using Hashicorp Cloud Platform, ensure that you correctly defined your 'namespace' when creating the App Connection."
+              >
+                <div>
+                  <span>Don&#39;t see the mount you&#39;re looking for?</span>{" "}
+                  <FontAwesomeIcon icon={faCircleInfo} className="text-mineshaft-400" />
+                </div>
+              </Tooltip>
+            }
+          >
+            <FilterableSelect
+              menuPlacement="top"
+              isLoading={isMountsLoading && Boolean(connectionId)}
+              isDisabled={!connectionId}
+              onChange={(option) =>
+                onChange((option as SingleValue<{ value: string }>)?.value ?? null)
+              }
+              options={mounts?.map((v) => ({ label: v, value: v }))}
+              placeholder="Select a Secrets Engine Mount..."
+            />
+          </FormControl>
+        )}
+      />
+      <Controller
+        name="destinationConfig.path"
+        control={control}
+        render={({ field: { value, onChange }, fieldState: { error } }) => (
+          <FormControl
+            tooltipClassName="max-w-sm"
+            tooltipText="The Secrets Engine mount path where secrets should be synced to. If the path does not exist, it will be created."
+            isError={Boolean(error)}
+            errorText={error?.message}
+            label="Path"
+          >
+            <Input value={value} onChange={onChange} placeholder="dev/example" />
+          </FormControl>
+        )}
+      />
+    </>
+  );
+};

frontend/src/components/secret-syncs/forms/SecretSyncDestinationFields/SecretSyncDestinationFields.tsx

@@ -11,6 +11,7 @@ import { CamundaSyncFields } from "./CamundaSyncFields";
 import { DatabricksSyncFields } from "./DatabricksSyncFields";
 import { GcpSyncFields } from "./GcpSyncFields";
 import { GitHubSyncFields } from "./GitHubSyncFields";
+import { HCVaultSyncFields } from "./HCVaultSyncFields";
 import { HumanitecSyncFields } from "./HumanitecSyncFields";
 import { TeamCitySyncFields } from "./TeamCitySyncFields";
 import { TerraformCloudSyncFields } from "./TerraformCloudSyncFields";
@@ -47,6 +48,8 @@ export const SecretSyncDestinationFields = () => {
       return <VercelSyncFields />;
     case SecretSync.Windmill:
       return <WindmillSyncFields />;
+    case SecretSync.HCVault:
+      return <HCVaultSyncFields />;
     case SecretSync.TeamCity:
       return <TeamCitySyncFields />;
     default:

frontend/src/components/secret-syncs/forms/SecretSyncOptionsFields/SecretSyncOptionsFields.tsx

@@ -43,6 +43,7 @@ export const SecretSyncOptionsFields = ({ hideInitialSync }: Props) => {
     case SecretSync.Camunda:
     case SecretSync.Vercel:
     case SecretSync.Windmill:
+    case SecretSync.HCVault:
     case SecretSync.TeamCity:
       AdditionalSyncOptionsFieldsComponent = null;
       break;

frontend/src/components/secret-syncs/forms/SecretSyncReviewFields/HCVaultSyncReviewFields.tsx

@@ -0,0 +1,18 @@
+import { useFormContext } from "react-hook-form";
+
+import { TSecretSyncForm } from "@app/components/secret-syncs/forms/schemas";
+import { GenericFieldLabel } from "@app/components/v2";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+
+export const HCVaultSyncReviewFields = () => {
+  const { watch } = useFormContext<TSecretSyncForm & { destination: SecretSync.HCVault }>();
+  const mount = watch("destinationConfig.mount");
+  const path = watch("destinationConfig.path");
+
+  return (
+    <>
+      <GenericFieldLabel label="Secrets Engine Mount">{mount}</GenericFieldLabel>
+      <GenericFieldLabel label="Path">{path}</GenericFieldLabel>
+    </>
+  );
+};

frontend/src/components/secret-syncs/forms/SecretSyncReviewFields/SecretSyncReviewFields.tsx

@@ -21,6 +21,7 @@ import { CamundaSyncReviewFields } from "./CamundaSyncReviewFields";
 import { DatabricksSyncReviewFields } from "./DatabricksSyncReviewFields";
 import { GcpSyncReviewFields } from "./GcpSyncReviewFields";
 import { GitHubSyncReviewFields } from "./GitHubSyncReviewFields";
+import { HCVaultSyncReviewFields } from "./HCVaultSyncReviewFields";
 import { HumanitecSyncReviewFields } from "./HumanitecSyncReviewFields";
 import { TeamCitySyncReviewFields } from "./TeamCitySyncReviewFields";
 import { TerraformCloudSyncReviewFields } from "./TerraformCloudSyncReviewFields";
@@ -89,6 +90,9 @@ export const SecretSyncReviewFields = () => {
     case SecretSync.Windmill:
       DestinationFieldsComponent = <WindmillSyncReviewFields />;
       break;
+    case SecretSync.HCVault:
+      DestinationFieldsComponent = <HCVaultSyncReviewFields />;
+      break;
     case SecretSync.TeamCity:
       DestinationFieldsComponent = <TeamCitySyncReviewFields />;
       break;

frontend/src/components/secret-syncs/forms/schemas/hc-vault-sync-destination-schema.ts

@@ -0,0 +1,22 @@
+import { z } from "zod";
+
+import { BaseSecretSyncSchema } from "@app/components/secret-syncs/forms/schemas/base-secret-sync-schema";
+import { SecretSync } from "@app/hooks/api/secretSyncs";
+
+export const HCVaultSyncDestinationSchema = BaseSecretSyncSchema().merge(
+  z.object({
+    destination: z.literal(SecretSync.HCVault),
+    destinationConfig: z.object({
+      mount: z.string().trim().min(1, "Secrets Engine Mount required"),
+      path: z
+        .string()
+        .trim()
+        .min(1, "Path required")
+        .transform((val) => val.trim().replace(/^\/+|\/+$/g, "")) // removes leading/trailing slashes
+        .refine((val) => /^([a-zA-Z0-9._-]+\/)*[a-zA-Z0-9._-]+$/.test(val), {
+          message:
+            "Invalid Vault path format. Use alphanumerics, dots, dashes, underscores, and single slashes between segments."
+        })
+    })
+  })
+);

frontend/src/components/secret-syncs/forms/schemas/secret-sync-schema.ts

@@ -8,6 +8,7 @@ import { CamundaSyncDestinationSchema } from "./camunda-sync-destination-schema"
 import { DatabricksSyncDestinationSchema } from "./databricks-sync-destination-schema";
 import { GcpSyncDestinationSchema } from "./gcp-sync-destination-schema";
 import { GitHubSyncDestinationSchema } from "./github-sync-destination-schema";
+import { HCVaultSyncDestinationSchema } from "./hc-vault-sync-destination-schema";
 import { HumanitecSyncDestinationSchema } from "./humanitec-sync-destination-schema";
 import { TeamCitySyncDestinationSchema } from "./teamcity-sync-destination-schema";
 import { TerraformCloudSyncDestinationSchema } from "./terraform-cloud-destination-schema";
@@ -27,6 +28,7 @@ const SecretSyncUnionSchema = z.discriminatedUnion("destination", [
   CamundaSyncDestinationSchema,
   VercelSyncDestinationSchema,
   WindmillSyncDestinationSchema,
+  HCVaultSyncDestinationSchema,
   TeamCitySyncDestinationSchema
 ]);
 

frontend/src/helpers/appConnections.ts

@@ -19,6 +19,7 @@ import {
   DatabricksConnectionMethod,
   GcpConnectionMethod,
   GitHubConnectionMethod,
+  HCVaultConnectionMethod,
   HumanitecConnectionMethod,
   LdapConnectionMethod,
   MsSqlConnectionMethod,
@@ -58,6 +59,7 @@ export const APP_CONNECTION_MAP: Record<
   [AppConnection.Camunda]: { name: "Camunda", image: "Camunda.png" },
   [AppConnection.Windmill]: { name: "Windmill", image: "Windmill.png" },
   [AppConnection.Auth0]: { name: "Auth0", image: "Auth0.png", size: 40 },
+  [AppConnection.HCVault]: { name: "Hashicorp Vault", image: "Vault.png", size: 65 },
   [AppConnection.LDAP]: { name: "LDAP", image: "LDAP.png", size: 65 },
   [AppConnection.TeamCity]: { name: "TeamCity", image: "TeamCity.png" }
 };
@@ -88,11 +90,14 @@ export const getAppConnectionMethodDetails = (method: TAppConnection["method"])
     case PostgresConnectionMethod.UsernameAndPassword:
     case MsSqlConnectionMethod.UsernameAndPassword:
       return { name: "Username & Password", icon: faLock };
+    case HCVaultConnectionMethod.AccessToken:
     case TeamCityConnectionMethod.AccessToken:
     case WindmillConnectionMethod.AccessToken:
       return { name: "Access Token", icon: faKey };
     case Auth0ConnectionMethod.ClientCredentials:
       return { name: "Client Credentials", icon: faServer };
+    case HCVaultConnectionMethod.AppRole:
+      return { name: "App Role", icon: faUser };
     case LdapConnectionMethod.SimpleBind:
       return { name: "Simple Bind", icon: faLink };
     default:

frontend/src/helpers/secretSyncs.ts

@@ -40,6 +40,10 @@ export const SECRET_SYNC_MAP: Record<SecretSync, { name: string; image: string }
     name: "Windmill",
     image: "Windmill.png"
   },
+  [SecretSync.HCVault]: {
+    name: "Hashicorp Vault",
+    image: "Vault.png"
+  },
   [SecretSync.TeamCity]: {
     name: "TeamCity",
     image: "TeamCity.png"
@@ -59,6 +63,7 @@ export const SECRET_SYNC_CONNECTION_MAP: Record<SecretSync, AppConnection> = {
   [SecretSync.Camunda]: AppConnection.Camunda,
   [SecretSync.Vercel]: AppConnection.Vercel,
   [SecretSync.Windmill]: AppConnection.Windmill,
+  [SecretSync.HCVault]: AppConnection.HCVault,
   [SecretSync.TeamCity]: AppConnection.TeamCity
 };
 

frontend/src/hooks/api/appConnections/enums.ts

@@ -14,6 +14,7 @@ export enum AppConnection {
   Camunda = "camunda",
   Windmill = "windmill",
   Auth0 = "auth0",
+  HCVault = "hashicorp-vault",
   LDAP = "ldap",
   TeamCity = "teamcity"
 }

frontend/src/hooks/api/appConnections/hc-vault/index.ts

@@ -0,0 +1 @@
+export * from "./queries";

frontend/src/hooks/api/appConnections/hc-vault/queries.tsx

@@ -0,0 +1,36 @@
+import { useQuery, UseQueryOptions } from "@tanstack/react-query";
+
+import { apiRequest } from "@app/config/request";
+
+import { appConnectionKeys } from "../queries";
+
+const hcVaultConnectionKeys = {
+  all: [...appConnectionKeys.all, "hcvault"] as const,
+  listMounts: (connectionId: string) =>
+    [...hcVaultConnectionKeys.all, "mounts", connectionId] as const
+};
+
+export const useHCVaultConnectionListMounts = (
+  connectionId: string,
+  options?: Omit<
+    UseQueryOptions<
+      string[],
+      unknown,
+      string[],
+      ReturnType<typeof hcVaultConnectionKeys.listMounts>
+    >,
+    "queryKey" | "queryFn"
+  >
+) => {
+  return useQuery({
+    queryKey: hcVaultConnectionKeys.listMounts(connectionId),
+    queryFn: async () => {
+      const { data } = await apiRequest.get<string[]>(
+        `/api/v1/app-connections/hashicorp-vault/${connectionId}/mounts`
+      );
+
+      return data;
+    },
+    ...options
+  });
+};

frontend/src/hooks/api/appConnections/types/app-options.ts

@@ -72,6 +72,10 @@ export type TAuth0ConnectionOption = TAppConnectionOptionBase & {
   app: AppConnection.Auth0;
 };
 
+export type THCVaultConnectionOption = TAppConnectionOptionBase & {
+  app: AppConnection.HCVault;
+};
+
 export type TLdapConnectionOption = TAppConnectionOptionBase & {
   app: AppConnection.LDAP;
 };
@@ -96,6 +100,7 @@ export type TAppConnectionOption =
   | TCamundaConnectionOption
   | TWindmillConnectionOption
   | TAuth0ConnectionOption
+  | THCVaultConnectionOption
   | TTeamCityConnectionOption;
 
 export type TAppConnectionOptionMap = {
@@ -114,6 +119,7 @@ export type TAppConnectionOptionMap = {
   [AppConnection.Camunda]: TCamundaConnectionOption;
   [AppConnection.Windmill]: TWindmillConnectionOption;
   [AppConnection.Auth0]: TAuth0ConnectionOption;
+  [AppConnection.HCVault]: THCVaultConnectionOption;
   [AppConnection.LDAP]: TLdapConnectionOption;
   [AppConnection.TeamCity]: TTeamCityConnectionOption;
 };

frontend/src/hooks/api/appConnections/types/hc-vault-connection.ts

@@ -0,0 +1,27 @@
+import { AppConnection } from "@app/hooks/api/appConnections/enums";
+import { TRootAppConnection } from "@app/hooks/api/appConnections/types/root-connection";
+
+export enum HCVaultConnectionMethod {
+  AccessToken = "access-token",
+  AppRole = "app-role"
+}
+
+export type THCVaultConnection = TRootAppConnection & { app: AppConnection.HCVault } & (
+    | {
+        method: HCVaultConnectionMethod.AccessToken;
+        credentials: {
+          instanceUrl: string;
+          namespace?: string;
+          accessToken: string;
+        };
+      }
+    | {
+        method: HCVaultConnectionMethod.AppRole;
+        credentials: {
+          instanceUrl: string;
+          namespace?: string;
+          roleId: string;
+          secretId: string;
+        };
+      }
+  );

frontend/src/hooks/api/appConnections/types/index.ts

@@ -9,6 +9,7 @@ import { TCamundaConnection } from "./camunda-connection";
 import { TDatabricksConnection } from "./databricks-connection";
 import { TGcpConnection } from "./gcp-connection";
 import { TGitHubConnection } from "./github-connection";
+import { THCVaultConnection } from "./hc-vault-connection";
 import { THumanitecConnection } from "./humanitec-connection";
 import { TLdapConnection } from "./ldap-connection";
 import { TMsSqlConnection } from "./mssql-connection";
@@ -27,6 +28,7 @@ export * from "./camunda-connection";
 export * from "./databricks-connection";
 export * from "./gcp-connection";
 export * from "./github-connection";
+export * from "./hc-vault-connection";
 export * from "./humanitec-connection";
 export * from "./ldap-connection";
 export * from "./mssql-connection";
@@ -52,6 +54,7 @@ export type TAppConnection =
   | TCamundaConnection
   | TWindmillConnection
   | TAuth0Connection
+  | THCVaultConnection
   | TLdapConnection
   | TTeamCityConnection;
 
@@ -96,6 +99,7 @@ export type TAppConnectionMap = {
   [AppConnection.Camunda]: TCamundaConnection;
   [AppConnection.Windmill]: TWindmillConnection;
   [AppConnection.Auth0]: TAuth0Connection;
+  [AppConnection.HCVault]: THCVaultConnection;
   [AppConnection.LDAP]: TLdapConnection;
   [AppConnection.TeamCity]: TTeamCityConnection;
 };

frontend/src/hooks/api/secretSyncs/enums.ts

@@ -11,6 +11,7 @@ export enum SecretSync {
   Camunda = "camunda",
   Vercel = "vercel",
   Windmill = "windmill",
+  HCVault = "hashicorp-vault",
   TeamCity = "teamcity"
 }