Vulnerability in Better-auth

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 authorization_code grant redeems a single-use authorization code throug…

Vulnerability class: Race Condition

Affected products

Weakness classification (CWE)

References