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CVE-2026-28791

HIGH CVSS 3.1: 7.4 EPSS 0.08%
Updated Mar 13, 2026
Tina
Parameter Value
CVSS 7.4 (HIGH)
Affected Versions before 2.1.7
Fixed In 2.1.7
Type CWE-22 (Path Traversal)
Vendor Tina
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Ssw Tinacms\/Cli
cpe:2.3:a:ssw:tinacms\/cli:*:*:*:*:*:node.js:*:*
2.1.7