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Vulnerability record · CVE-2026-92812 · published 16 September 2026

CVE-2026-92812: Path traversal vulnerability

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.

7.6 CVSS 4.0 High EPSS 0.42% · top 66.3% CWE-22 · Path traversal Deferred
7.6CVSS 4.0 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
22 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/decaporg/decap-cms
https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d1216e97b890173f46436752019/packages/decap-server/src/middleware
https://github.com/geo-chen/oss/blob/main/decap-cms.md
https://www.vulncheck.com/advisories/decap-server-path-traversal-via-sibling-directory-prefix-matching

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Source: NIST National Vulnerability Database (record CVE-2026-92812), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.