CVE-2026-34399

FreeCAD: Arbitrary Code Execution via eval() on untrusted SVG template scale field in BIM TechDraw Page

7.8 HighFix available

FreeCAD is a free and open-source multiplatform 3D parametric modeler. From 0.19 until 1.1.1, FreeCAD's BIM Workbench contains an eval() call on untrusted data from SVG template files. When a user creates a TechDraw page from a malicious SVG template, arbitrary Python code executes. The vulnerable code is in src/Mod/BIM/bimcommands/BimTDPage.py (line 87). This issue is fixed in version 1.1.1.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.20%Up 0.1 points since Aug 18, 2026

What each source reports

CVE List Score used 7.8

FreeCAD: Arbitrary Code Execution via eval() on untrusted SVG template scale field in BIM TechDraw Page

Record: CVE-2026-34399
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-95
Updated: 2026-11-02

EUVDEUVD-2026-60456 7.8

Record: EUVD-2026-60456
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

NVD 7.8

Record: CVE-2026-34399
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-95
Updated: 2026-11-02

OSV 7.8

FreeCAD: Arbitrary Code Execution via eval() on untrusted SVG template scale field in BIM TechDraw Page

Record: CVE-2026-34399
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-95
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-34399 7.8

Record: DEBIAN-CVE-2026-34399
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-34399 7.8

Record: UBUNTU-CVE-2026-34399
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

freecad

Affected packages

Affected packages
Package	Affected	Fixed
`freecad` Debian:13	before 1.0.0+dfsg-8+deb13u3, plus listed versions 1.0.0+dfsg-81.0.0+dfsg-8+deb13u11.0.0+dfsg-8+deb13u2	1.0.0+dfsg-8+deb13u3
`freecad` Debian:14	before 1.1.1+dfsg-1, plus listed versions 1.0.0+dfsg-81.0.2+dfsg-11.0.2+dfsg-21.0.2+dfsg-31.0.2+dfsg-4 Show 7 moreShow less 1.0.2+dfsg-51.0.2+dfsg-61.0.2+dfsg-71.0.2+dfsg-8~exp11.1.0+dfsg-11.1.0+dfsg-21.1.0+dfsg-2~exp1	1.1.1+dfsg-1
`freecad` Ubuntu:16.04:LTS	All versions, plus listed versions 0.14.3702+dfsg-40.15.4671+dfsg1-10.15.4671+dfsg1-20.15.4671+dfsg1-30.15.4671+dfsg1-4	None known
`freecad` Ubuntu:18.04:LTS	All versions, plus listed versions 0.16+dfsg2-30.16+dfsg2-3build30.16.6712+dfsg1-10.16.6712+dfsg1-1ubuntu10.16.6712+dfsg1-1ubuntu2	None known
`freecad` Ubuntu:20.04:LTS	All versions, plus listed versions 0.18.3+dfsg1-10.18.3+dfsg1-40.18.4+dfsg1-10.18.4+dfsg1-2~build10.18.4+dfsg1-2 Show 4 moreShow less 0.18.4+dfsg1-2ubuntu80.18.4+dfsg2-1ubuntu10.18.4+dfsg2-1ubuntu20.18.4+dfsg2-1ubuntu4	None known
`freecad` Ubuntu:22.04:LTS	All versions, plus listed versions 0.19.1+dfsg1-20.19.2+dfsg1-30.19.2+dfsg1-3ubuntu1	None known
`freecad` Ubuntu:26.10	All versions, plus listed versions 1.1.1+dfsg-31.1.1+dfsg-3build11.1.3+dfsg-3build1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-34399 is a high vulnerability (CVSS 7.8) in Freecad, published August 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. Fixed in freecad 1.0.0+dfsg-8+deb13u3.