CVE-2026-111934
CVE-2026-111934 · Coder before 2.34.7 IP Spoofing via X-Forwarded-For Header
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.3 · Medium · EPSS 0.1% · Fix available
- Published
- Updated
Affected products and versions
coder
- Versions
- ≥ 0, < 2.34.7: Affected (semver)
- 2.34.7: Not affected (semver)
Update to 2.34.7