CVE-2026-111934
LOW
CVSS 3.7
Published: 2026-10-17
Modified: 2026-10-17
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Threat Intelligence Pending
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Description
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.
Quick Facts
| CVE ID | CVE-2026-111934 |
| CVSS Score | 3.7 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
| Published | 2026-10-17 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |