{"id":"CVE-2026-92812","title":"decap-server contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation","summary":"decap-server contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation. Attackers can access sibling directories whose names begin with the rep…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","cwe":["CWE-22"],"vendor":"decaporg","product":"decap-server","affected":["decap-server 11f35405cd1a1d1216e97b890173f46436752019"],"published":"2026-09-16","updated":"2026-09-19","sourceUpdated":"2026-09-19T02:16:55.073","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92812","references":[{"url":"https://github.com/decaporg/decap-cms","label":"disclosure@vulncheck.com"},{"url":"https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d1216e97b890173f46436752019/packages/decap-server/src/middlewares/joi/customValidators.ts#L11-L16","label":"disclosure@vulncheck.com"},{"url":"https://github.com/geo-chen/oss/blob/main/decap-cms.md","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/decap-server-path-traversal-via-sibling-directory-prefix-matching","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-19T01:53:24.560519Z"},"epss":0.00289,"epssPercentile":0.2166,"ingestedAt":"2026-09-16T21:05:36.881Z","slug":"CVE-2026-92812","body":"## Overview\n\ndecap-server contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation. Attackers can access sibling directories whose names begin with the repository directory name to read, write, or delete files outside the intended repository root.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":207573,"id":"CVE-2026-92812","ts":1789786627202,"field":"exploit_available","old":"false","new":"true"}]}