CVE-2026-34398

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

CVE-2026-34398 is fixed in 2 products on 2 platforms, first by FreeCAD 1.1.1, released April 14, 2026. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms

CVSS

7.8

high

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0022

13th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
FreeCAD	1.1.1	FreeCAD 1.1.1	Apr 14, 2026
Linux
freecad · Debian 13.5 (trixie)	1.0.0+dfsg-8+deb13u3	DEBIAN-CVE-2026-34398	Aug 27, 2026
freecad · Debian 14	1.1.1+dfsg-1	DEBIAN-CVE-2026-34398	Aug 27, 2026

Details

Published
August 17, 2026
Weakness
CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-34398

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2026-34398">CVE-2026-34398 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.