一线运维实战手记 · 云计算 · 数据库 · 故障排查
2026年10月18日

CVE-2026-111934 [LOW] – Coder before 2.34.7 contains an IP spoofing vulnerability in the ExtractRealIPAddress midd

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Coder before 2.34.7 contains an IP spoofing vulnerability in the ExtractRealIPAddress middleware that trusts the leftmost, client-supplied X-Forwarded-For value instead of the client IP appended by a reverse proxy. Attackers can send forged X-Forwarded-For values through appending proxies to bypass per-IP rate limits on login, one-time passcode, and password validation endpoints, enabling brute-force attacks, and to falsify IP addresses recorded in audit logs.