Summaryinfo

A vulnerability was found in Tina CMS up to 2.2.1. It has been rated as critical. Impacted is the function FilesystemBridge.get/FilesystemBridge.put/FilesystemBridge.delete/FilesystemBridge.glob. Performing a manipulation results in path traversal. This vulnerability is identified as CVE-2026-34604. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Tina CMS up to 2.2.1. This affects the function FilesystemBridge.get/FilesystemBridge.put/FilesystemBridge.delete/FilesystemBridge.glob. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-34604 since 03/30/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 2.2.2 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Vendor

• Tina

Name

• CMS

Version

• 2.2.0
• 2.2.1

CPE 2.3info

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CPE 2.2info

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