CVE-2026-59655 Apache CloudStack: Unauthenticated OAuth provider client-secret disclosure

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's OAuth authentication plugin while listing OAuth providers. This issue affects Apache CloudStack: from 4.19.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to...

CVE-2026-67332

@better-auth/oauth-provider before 1.7.0-beta.4 fails to bind access-token audience to the authorization grant, allowing clients to request tokens for unrelated resources. Attackers can complete an OAuth flow and obtain access tokens whose audience targets resource servers the authorization never...

CVE-2026-67332 @better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass

@better-auth/oauth-provider before 1.7.0-beta.4 fails to bind access-token audience to the authorization grant, allowing clients to request tokens for unrelated resources. Attackers can complete an OAuth flow and obtain access tokens whose audience targets resource servers the authorization never...

CVE-2026-67332 @better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass

@better-auth/oauth-provider before 1.7.0-beta.4 fails to bind access-token audience to the authorization grant, allowing clients to request tokens for unrelated resources. Attackers can complete an OAuth flow and obtain access tokens whose audience targets resource servers the authorization never...

CVE-2026-14541 Authentication Bypass and Audience Confusion in MCP Toolbox OAuth Provider

An authentication bypass and audience confusion vulnerability exists in the Google OAuth provider component of Google mcp-toolbox version 1.4.0. When a Google authService is initialized with mcpEnabled: true but lacks an explicitly defined audience or clientId, the ValidateMCPAuth pipeline for...

CVE-2026-53517

Better Auth is an authentication and authorization library for TypeScript. From 1.4.8-beta.7 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint on the refreshtoken grant performs a non-atomic read, validate, revoke, and mint sequence on the oauthRefreshToken row, allowing...

EUVD-2026-44745

Better Auth is an authentication and authorization library for TypeScript. From 1.4.8-beta.7 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint on the refreshtoken grant performs a non-atomic read, validate, revoke, and mint sequence on the oauthRefreshToken row, allowing...

CVE-2026-53518 Better Auth OAuth Provider: Race Condition in Authorization Code Exchange Enables Multi-Use Code Redemption

Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint for the authorizationcode grant redeems a single-use authorization code through a non-atomic find-then-delete sequence, allowing two...

CVE-2026-53518 Better Auth OAuth Provider: Race Condition in Authorization Code Exchange Enables Multi-Use Code Redemption

Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint for the authorizationcode grant redeems a single-use authorization code through a non-atomic find-then-delete sequence, allowing two...

CVE-2026-53518

Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint for the authorizationcode grant redeems a single-use authorization code through a non-atomic find-then-delete sequence, allowing two...

CVE-2026-12761 miniOrange Social Login and Register (Discord, Google, Twitter, LinkedIn) <= 7.7.0 - Unauthenticated Authentication Bypass to Administrator Account Takeover via Profile Completion OTP Flow

The miniOrange Social Login and Register Discord, Google, Twitter, LinkedIn plugin for WordPress is vulnerable to authentication bypass leading to account takeover in versions up to and including 7.7.0. This is due to the Profile Completion flow accepting an arbitrary email address via the...

@inkeep/agents-api (>=0.73.0, <=0.80.6), @inkeep/agents-cli (>=0.73.0, <=0.80.6) +5 more potentially affected by CVE-2026-53518 via @better-auth/oauth-provider (1.6.9)

@better-auth/oauth-provider NPM version 1.6.9 is affected by a known vulnerability. The following packages have a transitive dependency on @better-auth/oauth-provider and may be impacted: - @inkeep/agents-api =0.73.0, =0.73.0, =0.73.1, =0.73.0, =0.73.1, =0.73.1, =0.73.1, =0.80.6 Source cves:...

@better-auth/oauth-provider's OAuth authorization-code grant allows concurrent redemption when two token requests race the find-then-delete primitive

Am I affected? Users are affected if all of the following are true: - Their project depends on @better-auth/oauth-provider at a version = 1.6.0, = 1.4.8-beta.7, 1.6.0, or enables the legacy oidc-provider or mcp plugins from better-auth/plugins. - Their application exposes /api/auth/oauth2/token o...

@inkeep/agents-api (>=0.73.0, <=0.80.6), @inkeep/agents-cli (>=0.73.0, <=0.80.6) +5 more potentially affected by CVE-2026-53518 via @better-auth/oauth-provider (1.6.9)

@better-auth/oauth-provider NPM version 1.6.9 is affected by a known vulnerability. The following packages have a transitive dependency on @better-auth/oauth-provider and may be impacted: - @inkeep/agents-api =0.73.0, =0.73.0, =0.73.1, =0.73.0, =0.73.1, =0.73.1, =0.73.1, =0.80.6 Source cves:...

@inkeep/agents-api (>=0.73.0, <=0.80.6), @inkeep/agents-cli (>=0.73.0, <=0.80.6) +5 more potentially affected by CVE-2026-53517 via @better-auth/oauth-provider (1.6.9)

@better-auth/oauth-provider NPM version 1.6.9 is affected by a known vulnerability. The following packages have a transitive dependency on @better-auth/oauth-provider and may be impacted: - @inkeep/agents-api =0.73.0, =0.73.0, =0.73.1, =0.73.0, =0.73.1, =0.73.1, =0.73.1, =0.80.6 Source cves:...

@inkeep/agents-api (>=0.73.0, <=0.80.6), @inkeep/agents-cli (>=0.73.0, <=0.80.6) +5 more potentially affected by CVE-2026-53517 via @better-auth/oauth-provider (1.6.9)

@better-auth/oauth-provider NPM version 1.6.9 is affected by a known vulnerability. The following packages have a transitive dependency on @better-auth/oauth-provider and may be impacted: - @inkeep/agents-api =0.73.0, =0.73.0, =0.73.1, =0.73.0, =0.73.1, =0.73.1, =0.73.1, =0.80.6 Source cves:...

GHSA-392P-2Q2V-4372 Better Auth: OAuth refresh-token rotation forks the token family on concurrent redemption

Am I affected? Users are affected if all of the following are true: - Their project depends on @better-auth/oauth-provider at a version = 1.6.0, = 1.4.8-beta.7, 1.6.0. - At least one OAuth client served by their application's authorization server requests the offlineaccess scope, so refresh token...

Better Auth: OAuth refresh-token replay via missing client authentication on oidc-provider and mcp plugins

Am I affected? Users are affected if all of the following are true: - Their application uses better-auth and has enabled at least one of: oidcProvider imported from better-auth/plugins/oidc-provider, or mcp imported from better-auth/plugins/mcp. - Their application has at least one confidential...

PT-2026-56297

Name of the Vulnerable Software and Affected Versions better-auth versions prior to 1.6.11 Description The legacy oidcProvider and mcp plugins expose an OAuth 2.0 token endpoint that fails to authenticate confidential clients during the refresh token grant. The system authenticates requests based...

PT-2026-56302

Name of the Vulnerable Software and Affected Versions @better-auth/oauth-provider versions 1.6.0 through 1.6.10 better-auth versions 1.4.8-beta.7 through 1.6.10 Description The POST /oauth2/token endpoint for the authorization code grant redeems a single-use authorization code using a non-atomic...