CVE-2026-34603

Tina is a headless content management system. Prior to version 2.2.2, @tinacms/cli recently added lexical path-traversal checks to the dev media routes, but the implementation still validates only the path string and does not resolve symlink or junction targets. If a link already exists under the media root, Tina accepts a path like pivot/written-from-media.txt as "inside" the media directory and then performs real filesystem operations through that link target. This allows out-of-root media listing and write access, and the same root cause also affects delete. This issue has been patched in version 2.2.2.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/tinacms/tinacms/commit/f124eabaca10dac9a4d765c9e4135813c4830955	Patch
https://github.com/tinacms/tinacms/security/advisories/GHSA-g87c-r2jp-293w	Vendor Advisory
https://github.com/tinacms/tinacms/security/advisories/GHSA-g87c-r2jp-293w	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-04-01 17:28

Updated : 2026-06-17 10:39

NVD link : CVE-2026-34603

Mitre link : CVE-2026-34603

CVE.ORG link : CVE-2026-34603

JSON object : View

Products Affected

ssw

tinacms\/cli

CWE

CWE-22

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

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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