CVE-2026-34603

HIGH EPSS 32.6%
Published Apr 1, 20262mo ago · Modified Jun 17, 20261w ago
8.3 CVSS 3.1
High
Find Similar
Published Apr 1, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
8.3
Exploitability
2.8
Impact
5.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability Low

Threat Intelligence

EPSS Exploit Probability
32.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-22 Path Traversal Resource Mgmt
CWE-59

Affected Products 1

VendorProductVersionRange
sswtinacms\/cli* ≤2.2.1

References 2

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

Remediation

  • github.com https://github.com/tinacms/tinacms/commit/f124eabaca10dac9a4d765c9e4135813c4830955
    Patch