GO-2026-5777None▾ SunlitChi's RealIP Middleware allows IP spoofing via unvalidated X-Forwarded-For header in github.com/go-chi/chi
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
Chi's RealIP Middleware allows IP spoofing via unvalidated X-Forwarded-For header in github.com/go-chi/chi
github.com/go-chi/chi/v5 < 5.3.0Upgrade to a patched release:
github.com/go-chi/chi/v5 5.3.0Connected by shared product, vendor, weakness, or advisory.
CVE-2026-72816Medium· 6.5go-chi/chi through 5.2.1 contains an IP spoofing vulnerability in the RealIP middleware (middleware/realip.go)
GO-2026-5775NoneChi Middleware vulnerable to IP spoofing via X-Forwarded-For header in github.com/go-chi/chi
GO-2026-5774NoneChi has an IP spoofing vulnerability in middleware.RealIP in github.com/go-chi/chi
GHSA-rjr7-jggh-pgcpHighchi's RealIP Middleware allows IP spoofing via unvalidated X-Forwarded-For header
CVE-2025-71405Mediumchi Allows Host Header Injection which Leads to Open Redirect in RedirectSlashes
CVE-2026-72817Medium· 6.5go-chi/chi versions 0.9.0 before 5.3.0 contains an IP spoofing vulnerability in the RealIP middleware, which resolves the request source IP (Request.RemoteAddr) using the first IP in the X-Forwarded-For header without validating trusted …