cvedb.io
CVE-2021-4236
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2022-12-27T22:15:12.013 · Last modified 2026-06-17T04:19:19.493

Summary

Web Sockets do not execute any AuthenticateMethod methods which may be set, leading to a nil pointer dereference if the returned UserData pointer is assumed to be non-nil, or authentication bypass. This issue only affects WebSockets with an AuthenticateMethod hook. Request handlers that do not explicitly use WebSockets are not vulnerable.

Affected products

web_project — web

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.