CVE-2026-111934 — Coder before 2.34.7 IP Spoofing via X-Forwarded-For Header
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 c…
Published: 2026-10-17 · CVSS: 6.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7