manyfold3d manyfold up to 0.139.x Model File app/models/model_file.rb rename filename path traversal

Summaryinfo

A vulnerability described as critical has been identified in manyfold3d manyfold up to 0.139.x. The affected element is the function rename of the file app/models/model_file.rb of the component Model File Handler. Executing a manipulation of the argument filename can lead to path traversal. The identification of this vulnerability is CVE-2026-46336. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in manyfold3d manyfold up to 0.139.x. This vulnerability affects the function rename of the file app/models/model_file.rb of the component Model File Handler. The manipulation of the argument filename 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. CVE summarizes:

Manyfold is an open source, self-hosted web application for managing a collection of 3d models, particularly focused on 3d printing. From 0.96.0 until 0.140.0, authenticated users can rename uploaded files with path traversal sequences because app/models/model_file.rb uses the user-controlled filename in File.join(model.path, filename) without sufficient sanitization, allowing files to be moved or written outside the configured library directory. This issue is fixed in version 0.140.0.

The advisory is available at github.com. This vulnerability was named CVE-2026-46336 since 05/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 0.140.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-44989). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• manyfold3d

Name

• manyfold

Version

• 0.139

Website

• Product: https://github.com/manyfold3d/manyfold/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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