CVE 7.1 HIGH

@tinacms/graphql’s `FilesystemBridge` Path Validation Can Be Bypassed via Symlinks or Junctions_CVE-2026-34604

7.1 / 10
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Description

Tina is a headless content management system. Prior to version 2.2.2, @tinacms/graphql uses string-based path containment checks in FilesystemBridge. That blocks plain ../ traversal, but it does not resolve symlink or junction targets. If a symlink/junction already exists under the allowed content root, a path like content/posts/pivot/owned.md is still considered "inside" the base even though the real filesystem target can be outside it. As a result, FilesystemBridge.get(), put(), delete(), and glob() can operate on files outside the intended root. This issue has been patched in version 2.2.2.

Basic Information

ID CVE-2026-34604
Source GitHub_M
Published Apr 1, 2026 at 16:05
Modified Apr 1, 2026 at 17:59

Affected Product

Vendor tinacms
Product tinacms
Version < 2.2.2
Affected Versions tinacms tinacms < 2.2.2

CWE Classification

References

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