References to Advisories, Solutions, and Tools

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Change History

go-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 proxies. A malicious client can prepend a forged IP as the first value of the X-Forwarded-For header to spoof the request source IP, potentially bypassing access controls or falsifying request logs.

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE-345

https://github.com/go-chi/chi/security/advisories/GHSA-9g5q-2w5x-hmxf

https://www.vulncheck.com/advisories/go-chi-chi-before-ip-spoofing-via-x-forwarded-for

[{"vendor":"go-chi","product":"chi","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/go-chi/chi/middleware","versions":[{"version":"0.9.0","lessThan":"5.3.0","versionType":"semver","status":"affected"},{"version":"5.3.0","versionType":"semver","status":"unaffected"}]}]