MEDIUM 6.9 NVD
CVE-2026-72816
go-chi/chi through 5.2.1 contains an IP spoofing vulnerability in the RealIP middleware (middleware/realip.go). The realIP() function reads client-controlled he
go-chi/chi through 5.2.1 contains an IP spoofing vulnerability in the RealIP middleware (middleware/realip.go). The realIP() function reads client-controlled headers (True-Client-IP, X-Real-IP, and X-Forwarded-For) and overwrites r.RemoteAddr without verifying that the request originated from a trusted proxy. Attackers can supply arbitrary IP addresses in these headers to bypass IP-based access controls, evade rate limiting and geo-IP restrictions, and pollute audit logs. Fixed in 5.3.0.
References
- https://github.com/go-chi/chi/security/advisories/GHSA-rjr7-jggh-pgcp
- https://www.vulncheck.com/advisories/go-chi-chi-before-ip-spoofing-via-realip-middleware
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-08-14 via NVD.
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