CVE-2026-73419

NextAuth.js/NMD vulnerability CVE-2026-73419 affects Auth.js OAuth/OIDC flow cookies. Prior to Auth.js @auth/core 0.41.3 and NextAuth.js 4.24.15 or 5.0.0-beta.32, state, nonce, and PKCE verifier were stored in global cookies not bound to the originating provider. On callback, a value from one pro...