FreeCAD up to 1.1.1 File Restore src/App/PropertyFile.cpp path traversal

Summaryinfo

A vulnerability was found in FreeCAD up to 1.1.1. It has been rated as critical. The impacted element is the function PropertyFileIncluded::Restore of the file src/App/PropertyFile.cpp of the component File Restore. This manipulation causes path traversal. The identification of this vulnerability is CVE-2026-73234. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in FreeCAD up to 1.1.1. Affected by this vulnerability is the function PropertyFileIncluded::Restore of the file src/App/PropertyFile.cpp of the component File Restore. 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:

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, PropertyFileIncluded::Restore() in src/App/PropertyFile.cpp concatenates an attacker-controlled file or data attribute from Document.xml with the document transient path without rejecting directory components, absolute paths, or parent traversal. A crafted .FCStd archive with a matching FileIncluded XML attribute and ZIP entry can therefore write attacker-controlled content to arbitrary locations accessible to the FreeCAD user, potentially enabling persistence, credential compromise, configuration replacement, or code execution. This issue is fixed in version 1.1.2.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-73234 since 08/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 1.1.2 eliminates this vulnerability.

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Productinfo

Name

• FreeCAD

Version

• 1.1.0
• 1.1.1

Website

• Product: https://github.com/FreeCAD/FreeCAD/

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