CVE-2026-28793

Tina is a headless content management system. Prior to 2.1.8, the TinaCMS CLI development server exposes media endpoints that are vulnerable to path traversal, allowing attackers to read and write arbitrary files on the filesystem outside the intended media directory. When running tinacms dev, the CLI starts a local HTTP server (default port 4001) exposing endpoints such as /media/list/*, /media/upload/*, and /media/*. These endpoints process user-controlled path segments using decodeURI() and path.join() without validating that the resolved path remains within the configured media directory. This vulnerability is fixed in 2.1.8.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tinacms/tinacms/security/advisories/GHSA-2f24-mg4x-534q	Exploit Vendor Advisory
https://github.com/tinacms/tinacms/security/advisories/GHSA-2f24-mg4x-534q	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ssw:tinacms\/cli:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-03-12 17:16

Updated : 2026-03-13 19:58

NVD link : CVE-2026-28793

Mitre link : CVE-2026-28793

CVE.ORG link : CVE-2026-28793

JSON object : View

Products Affected

ssw

tinacms\/cli

CWE

CWE-22

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

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