Description
FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, src/App/PropertyPythonObject.cpp in PropertyPythonObject::Restore() passes the attacker-controlled module attribute from serialized PropertyPythonObject XML directly to PyImport_ImportModule() while restoring a crafted FCStd document, which executes module-level Python code, and the legacy pickle branch also imports an attacker-controlled module and invokes its class constructor through PyObject_CallObject(). This issue is fixed in version 1.1.2.
References6
- github.com/FreeCAD/FreeCAD/commit/81b73925ce22610542367301d8eff…
- github.com/FreeCAD/FreeCAD/commit/983037f3003dc31f48db36705b86f…
- github.com/FreeCAD/FreeCAD/commit/e2dc6c8172673642c6856b8b3a5a6…
- github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
- github.com/FreeCAD/FreeCAD/security/advisories/GHSA-493w-pp4h-h…
- github.com/FreeCAD/FreeCAD/security/advisories/GHSA-493w-pp4h-h…
Metrics
- CVSS 3.1
-
7.0
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 9 · as of 11 November 2026
- CWE
- CWE-94
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.