CVE-2026-92812

Decap CMS before 3.11.0 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.
Configurations

No configuration.

History

22 Oct 2026, 16:19

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 6.8
v2 : unknown
v3 : 9.8
Summary (en) 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 repository directory name to read, write, or delete files outside the intended repository root. (en) Decap CMS before 3.11.0 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.
References
  • {'url': 'https://github.com/decaporg/decap-cms', 'source': 'disclosure@vulncheck.com'}
  • {'url': 'https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d1216e97b890173f46436752019/packages/decap-server/src/middlewares/joi/customValidators.ts#L11-L16', 'source': 'disclosure@vulncheck.com'}
  • {'url': 'https://www.vulncheck.com/advisories/decap-server-path-traversal-via-sibling-directory-prefix-matching', 'source': 'disclosure@vulncheck.com'}
  • () https://github.com/decaporg/decap-cms/releases?page=2#release-decap-cms@3.11.0 -
  • () https://github.com/decaporg/decap-cms/security/advisories/GHSA-5rrq-v82w-qpfr -
  • () https://www.vulncheck.com/advisories/decap-cms-path-traversal-via-sibling-directory-prefix-matching -

16 Sep 2026, 21:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-16 21:17

Updated : 2026-10-22 16:19


NVD link : CVE-2026-92812

Mitre link : CVE-2026-92812

CVE.ORG link : CVE-2026-92812


JSON object : View

Products Affected

No product.

CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')