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TI-2026-62551 Aliases CVE-2026-92812GHSA-fjm6-6gxh-mvf2

Decap CMS < 3.11.0 Path Traversal via Sibling Directory Prefix Matching

Priority HIGH 75CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00441 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed decap-cms (decaporg): 3.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
decaporgdecap-cmsbefore 3.11.03.11.0Patch availableCNA
  • decap-cms Vendordecaporg Affected before 3.11.0 Fixed in 3.11.0 Patch available CNA

Remediation

  • Fix · CNA decap-cms (decaporg) Fixed in 3.11.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-92812
  2. 2026-10-03 Alias added: GHSA-fjm6-6gxh-mvf2
  3. 2026-10-22 Title updated · CNA
  4. 2026-10-22 CVSS score changed · CNA
  5. 2026-10-22 Fix available: decaporg/[email protected] · CNA
  6. 2026-10-22 2 new references · CNA

References

Exploit 1

Patch 1

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences