Vulnerabilities CVE-2026-34789

CVE-2026-34789

High

Open

TLP:CLEAR

FreeCAD: Arbitrary code execution via unsandboxed PyImport_ImportModule in PropertyPythonObject::Restore

NVD CVE.org

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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.

Details

CVSS Score: 7.0
EPSS Score ⓘ: 0.14%

3.6th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Aug 17, 2026
Last Modified: Aug 18, 2026

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