{"id":"CVE-2026-57942","title":"LibreTranslate - IP Spoofing via X-Forwarded-For Header","summary":"LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the get_remote_address() function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-348"],"vendor":"LibreTranslate","product":"LibreTranslate","affected":["LibreTranslate <= 1.9.7"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-06-29T18:37:47.012327Z"},"exploitAvailable":true,"published":"2026-06-29","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:06:35.583Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57942","references":[{"url":"https://github.com/LibreTranslate/LibreTranslate/issues/986","label":"Researcher Disclosure"},{"url":"https://github.com/LibreTranslate/LibreTranslate/pull/987","label":"Pull Request"},{"url":"https://github.com/LibreTranslate/LibreTranslate/commit/397fd224080515d4001a1bc60c8fed53e3c56b6f","label":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/libretranslate-ip-spoofing-via-x-forwarded-for-header"}],"tags":["cve.org","exploit-available"],"epss":0.00234,"epssPercentile":0.14348,"ingestedAt":"2026-11-08T14:51:22.320Z","slug":"CVE-2026-57942","body":"## Overview\n\nLibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the get_remote_address() function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attackers can bypass per-IP rate limiting and flood bans by supplying forged addresses in the X-Forwarded-For header to enable unlimited API abuse.\n\n## Affected\n\n- `LibreTranslate <= 1.9.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}