dev.to· Aug 11, 2026· by virendravyas

Two JWT Bearer Schemes, One API: A Real ASP.NET Core Setup

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Most ASP.NET Core auth tutorials assume a single JWT scheme: one token, one identity, one [Authorize]...
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.
#dotnet#aspnetcore#security#csharp