dev.to· Aug 15, 2026· by mmushood

JWT Authentication in Express That You Can Actually Revoke

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Access tokens, refresh token rotation, and theft detection: the parts most Node.js tutorials leave...
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.
#backend#javascript#node#security