What’s Vulnerable › Vulnerabilities

CVE-2026-34398: FreeCAD: Arbitrary Code Execution via eval() on untrusted project file metadata in BIM Workbench

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-17 · updated 2026-09-09
• Weakness: CWE-95

Description

FreeCAD is a free and open-source multiplatform 3D parametric modeler. From 0.19 until 1.1.1, src/Mod/BIM/bimcommands/BimProjectManager.py in the BIM Project Manager Load Template flow passes attacker-controlled FCStd Meta property values for wpposition, wpu, wpv, and wpaxis directly to eval(), allowing arbitrary Python code execution when a user loads a malicious BIM project template. This issue is fixed in version 1.1.1.

Affected products

• FreeCAD: from 0.19, < 1.1.1

References

• https://github.com/FreeCAD/FreeCAD/commit/871ee19b76224910332bbfbd39eebbede967998b
• https://github.com/FreeCAD/FreeCAD/commit/9ed351cc4700db0a94c46f020c34c58bbf1bdaba
• https://github.com/FreeCAD/FreeCAD/pull/28610
• https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.1
• https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-8rfj-7956-6gwf
• https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-8rfj-7956-6gwf

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