{"id":"CVE-2026-111934","revision":"a33784cd72514db7a58e13498e407358","records":[{"revision":"a33784cd72514db7a58e13498e407358","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111934","aliases":[],"title":"Coder before 2.34.7 IP Spoofing via X-Forwarded-For Header","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.","state":0,"publishedAt":"2026-10-17T18:46:44.142+00:00","modifiedAt":"2026-10-19T16:39:17.593+00:00","affected":[{"ecosystem":"Vendor product","name":"coder","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"coder\",\n                    \"product\": \"coder\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:golang/github.com/coder/coder/v2\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.34.7\"\n                        },\n                        {\n                            \"version\": \"2.34.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7,"severity":"LOW"}],"references":["https://github.com/coder/coder/security/advisories/GHSA-vprw-xcrv-287h","https://www.vulncheck.com/advisories/coder-before-2.34.7-ip-spoofing-via-x-forwarded-for-header"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111934","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111934","identifiers":["CVE-2026-111934"]},"retained":false,"historicalAffected":[]}],"coverage":[]}