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TI-2026-22986 Aliases CVE-2026-28791GHSA-5hxf-c7j4-279c

Path Traversal in Media Upload Handle in Tina

Priority HIGH 68CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Tina is a headless content management system. Prior to 2.1.7, a path traversal vulnerability exists in the TinaCMS development server's media upload handler. The code at media.ts joins user-controlled path segments using path.join() without validating that the resulting path stays within the intended media directory. This allows writing files to arbitrary locations on the filesystem. This vulnerability is fixed in 2.1.7.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00377 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed tinacms (tinacms): 2.1.7tinacms (npm): 2.1.7

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
tinacmstinacmsbefore 2.1.72.1.7Patch availableCNA
—tinacms (npm)before 2.1.72.1.7Patch availableGHSA-5hxf-c7j4-279c
  • tinacms Vendortinacms Affected before 2.1.7 Fixed in 2.1.7 Patch available CNA
  • tinacms (npm) Vendor— Affected before 2.1.7 Fixed in 2.1.7 Patch available GHSA-5hxf-c7j4-279c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ssw:tinacms\/cli:*:*:*:*:*:node.js:*:*before 2.1.7Vulnerabletinacms
  • cpe:2.3:a:ssw:tinacms\/cli:*:*:*:*:*:node.js:*:* Versions before 2.1.7 Vulnerable ·tinacms

Remediation

  • Fix · CNA tinacms (tinacms) Fixed in 2.1.7
  • Fix · GHSA-5hxf-c7j4-279c tinacms (npm) Fixed in 2.1.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28791
  2. 2026-10-03 Alias added: GHSA-5hxf-c7j4-279c

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-22987 Cross-Origin File Exfiltration via CORS Misconfiguration + Path Traversal in TinaCMS CVSS 3.1CRITICAL 9.7
  • TI-2026-22988 Path Traversal Leading to Arbitrary File Read, Write and Delete in TinaCMS CVSS 3.1HIGH 8.4
  • TI-2026-26850 @tinacms/graphql's Media Endpoints Can Escape the Media Root via Symlinks or Junctions CVSS 3.1HIGH 8.3
  • TI-2025-41854 tinacms vulnerable to arbitrary code execution CVSS 4.0HIGH 7.3
  • TI-2026-23211 Arbitrary File Read via Disabled Vite Filesystem Restriction in TinaCMS CLI CVSS 3.1MEDIUM 6.2
  • TI-2023-10626 Sensitive Information leak via Script File in TinaCMS CVSS 3.1HIGH 8.6
See all 7 →

Sources

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