CyberRota Analysis
AI-GeneratedThe RealIP middleware in go-chi/chi versions up to 5.2.1 is vulnerable to IP spoofing due to inadequate verification of client-controlled headers, allowing attackers to manipulate r.RemoteAddr. This can lead to bypassing IP-based access controls, evading rate limits, and corrupting audit logs. Organizations using affected versions should prioritize upgrading to version 5.3.0 to mitigate these risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
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.