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.
Published: 2026-08-17
Score: 7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Tue, 18 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 18 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502
References
Metrics threat_severity

None

threat_severity

Important


Mon, 17 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Freecad
Freecad freecad
Vendors & Products Freecad
Freecad freecad

Mon, 17 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
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.
Title FreeCAD: Arbitrary code execution via unsandboxed PyImport_ImportModule in PropertyPythonObject::Restore
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-18T18:54:43.371Z

Reserved: 2026-03-30T19:54:55.556Z

Link: CVE-2026-34789

cve-icon Vulnrichment

Updated: 2026-08-18T18:54:02.662Z

cve-icon NVD

Status : Received

Published: 2026-08-17T21:16:44.403

Modified: 2026-08-18T19:16:47.900

Link: CVE-2026-34789

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-17T20:47:52Z

Links: CVE-2026-34789 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T15:00:06Z

Weaknesses