mafintosh tar-fs up to 1.16.4/2.1.2/3.1.0 path traversal

Summaryinfo

A vulnerability marked as critical has been reported in mafintosh tar-fs up to 1.16.4/2.1.2/3.1.0. Affected by this issue is some unknown functionality. This manipulation causes path traversal. This vulnerability is tracked as CVE-2025-59343. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in mafintosh tar-fs up to 1.16.4/2.1.2/3.1.0 and classified as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-59343 since 09/12/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 266028 (Debian dla-4313 : node-tar-fs - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.16.5, 2.1.3 or 3.1.1 eliminates this vulnerability. Applying the patch 0bd54cdf06da2b7b5b95cd4b062c9f4e0a8c4e09 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (266028) and CERT Bund (WID-SEC-2025-2313). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• IBM QRadar SIEM
• Red Hat Ansible Automation Platform
• IBM App Connect Enterprise

Productinfo

Vendor

• mafintosh

Name

• tar-fs

Version

• 1.16.0
• 1.16.1
• 1.16.2
• 1.16.3
• 1.16.4
• 2.1.0
• 2.1.1
• 2.1.2
• 3.0
• 3.1.0

License

• open-source

Website

• Product: https://github.com/mafintosh/tar-fs/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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