CVE-2026-63643: Socketio Missing Allow Request
Socket.IO server is initialized with CORS or server options without an `allowRequest` hook. Express-level middleware (such as IP whitelisting or authentication) does not automatically apply to Socket.IO handshakes, allowing unauthorized clients to bypass access controls.
JSgreprules fetch cve-2026-63643-socketio-missing-allow-request --engine opengrepDescription
Socket.IO server is initialized with CORS or server options without an `allowRequest` hook. Express-level middleware (such as IP whitelisting or authentication) does not automatically apply to Socket.IO handshakes, allowing unauthorized clients to bypass access controls.
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