dev.to· Oct 12, 2026· by melissa_50bf3b377e4a56cec

Your JWT secret might literally be "secret". Here's how to check.

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If your app signs JWTs with HS256, there's a check worth doing today. It takes a minute, and the...
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.
#jwt#security#webdev#node