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 headers True-Client-IP, X-Real-IP, and X-Forwarded-For and overwrites r.RemoteAddr without verifying that the request originated from a trusted...

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 headers True-Client-IP, X-Real-IP, and X-Forwarded-For and overwrites r.RemoteAddr without verifying that the request originated from a trusted...

CVE-2026-72817

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 fir...

EUVD-2026-58631

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...

CVE-2026-72816 go-chi chi before 5.3.0 IP Spoofing via RealIP Middleware

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...

CVE-2026-72817

The CVE affects go-chi/chi up to version 0.9.0 before 5.3.0, where the RealIP middleware resolves the source IP (Request.RemoteAddr) from the first IP in X-Forwarded-For without validating trusted proxies. An attacker can insert a forged value as the first IP, enabling IP spoofing that may bypass...

EUVD-2026-58632

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 fir...

CVE-2026-72816

The CVE-2026-72816 affects go-chi/chi up to version 5.2.1, specifically the RealIP middleware (realip.go). The realIP() function reads client-controlled headers (True-Client-IP, X-Real-IP, X-Forwarded-For) and overwrites r.RemoteAddr without validating the origin of the request from a trusted pro...

CVE-2026-72815

The CVE-2026-72815 affects go-chi chi v5.2.1 up to, but not including, v5.3.0. The RealIP middleware blindly trusts the leftmost value of X-Forwarded-For, enabling an attacker to bypass IP-based ACLs and rate limits and forge log entries by spoofing the IP address. The issue is fixed in v5.3.0. R...

EUVD-2026-58630

go-chi chi versions = 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first leftmost value of the X-Forwarded-For HTTP header. A remote attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log...

CVE-2026-72815

go-chi chi versions = 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first leftmost value of the X-Forwarded-For HTTP header. A remote attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log...

GHSA-3FXJ-6JH8-HVHX chi Has an IP Spoofing Vulnerability in `middleware.RealIP`

Summary The RealIP middleware in go-chi/chi is vulnerable to IP spoofing because it blindly trusts the first leftmost element of the X-Forwarded-For HTTP header. This allows a remote attacker to bypass IP-based access control lists ACLs and rate-limiting mechanisms by providing a spoofed IP addre...

GHSA-RJR7-JGGH-PGCP chi's RealIP Middleware allows IP spoofing via unvalidated X-Forwarded-For header

Summary realip middleware in go-chi/chi trusts headers like x-forwarded-for without checking them, so attackers can fake their ip and bypass rate limits or access controls Details the vuln is in middleware/realip.go , the realIP function pulls IPs straight from client headers and replaces...

CVE-2026-27981

HomeBox is a home inventory and organization system. Prior to 0.24.0, the authentication rate limiter authRateLimiter tracks failed attempts per client IP. It determines the client IP by reading, 1. X-Real-IP header, 2. First entry of X-Forwarded-For header, and 3. r.RemoteAddr TCP connection...

CVE-2026-27981

HomeBox is a home inventory and organization system. Prior to 0.24.0, the authentication rate limiter authRateLimiter tracks failed attempts per client IP. It determines the client IP by reading, 1. X-Real-IP header, 2. First entry of X-Forwarded-For header, and 3. r.RemoteAddr TCP connection...