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CVE-2026-34789 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-493w-pp4h-h77v	CISA-ADP
https://github.com/FreeCAD/FreeCAD/commit/81b73925ce22610542367301d8eff4259eb9596e	[email protected]
https://github.com/FreeCAD/FreeCAD/commit/983037f3003dc31f48db36705b86fb3fbe026295	[email protected]
https://github.com/FreeCAD/FreeCAD/commit/e2dc6c8172673642c6856b8b3a5a6accefb18279	[email protected]
https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2	[email protected]
https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-493w-pp4h-h77v	[email protected]

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-94	Improper Control of Generation of Code ('Code Injection')	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Aug 19, 2026	CVE Modified	CISA-ADP
Aug 18, 2026	CVE Modified	CISA-ADP
Aug 17, 2026	New CVE Received	[email protected]