MEDIUM 6.3 NVD
CVE-2026-114437
In the Golang Chi web framework, the ClientIPFromXFF middleware skips any X-Forwarded-For entry in a configured trusted CIDR but never verifies that the direct
In the Golang Chi web framework, the ClientIPFromXFF middleware skips any X-Forwarded-For entry in a configured trusted CIDR but never verifies that the direct TCP peer in http.Request.RemoteAddr belongs to that CIDR. A client that can reach the Go server directly can therefore append a trusted-looking proxy address and choose the client IP returned by middleware.GetClientIP.
This issue affects chi before 5.4.0.
References
- https://github.com/go-chi/chi/security/advisories/GHSA-j6qf-3m9c-vwj3
- https://www.tenable.com/security/research/tra-2026-66
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-10-21 via NVD.
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