CVE-2026-34604@tinacms/graphql's `FilesystemBridge` Path Validation Can Be Bypassed via Symlinks or Junctions
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
- Weakness (CWE)
- CWE-22, CWE-59
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Apr 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tinacms tinacms tinacms:tinacms (from the name) | before 2.2.2 | CNA record |
ssw tinacms/graphql ssw:tinacms/graphql | through 2.2.1 | NVD |
References
- https://github.com/tinacms/tinacms/security/advisories/GHSA-g9c2-gf25-3x67x-refsource-confirm, vendor-advisory
- https://github.com/tinacms/tinacms/commit/f124eabaca10dac9a4d765c9e4135813c4830955x-refsource-misc, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.