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.
History

Thu, 12 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Path Traversal Leading to Arbitrary File Read, Write and Delete in TinaCMS
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-12T16:50:20.132Z

Updated: 2026-03-12T16:50:20.132Z

Reserved: 2026-03-03T14:25:19.245Z

Link: CVE-2026-28793

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-12T17:16:50.543

Modified: 2026-03-12T17:16:50.543

Link: CVE-2026-28793

cve-icon Redhat

No data.