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MCP Gateway: Authority-injection and JWT/session bypass via the unauthenticated router hair-pin "router-key" / "mcp-init-host" path

🗓️ 19 May 2026 19:42:46Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

The MCP router bypasses JSON Web Token validation and session via the mcp-init-host header using router-key, rewriting authority.

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