CVE-2026-53517

CVE-2026-53517 affects Better Auth’s oauth-provider (and related memory adapter) prior to version 1.6.11. The POST /oauth2/token refresh_token flow performs a non-atomic read–validate–revoke–mint sequence on the oauthRefreshToken row, allowing concurrent requests with the same parent refresh toke...

NPM: Better Auth: OAuth refresh-token rotation forks the token family on concurrent redemption

NPM: Better Auth: OAuth refresh-token rotation forks the token family on concurrent redemption vulnerability discovered by ? in WordPress Npm better-auth versions = 1.4.8-beta.7, 1.6.0...

EUVD-2026-3691

A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. Thi...

CVE-2026-1035

A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. Thi...