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CVE-2026-34399— FreeCAD: Arbitrary Code Execution via eval() on untrusted SVG template scale field in BIM TechDraw Page

Quick assessment

Affected
FreeCAD FreeCAD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeCAD是FreeCAD组织的一款三维参数化计算机辅助设计软件。 FreeCAD 0.19版本至1.1.1之前版本存在代码注入漏洞，该漏洞源于BIM工作台对来自SVG模板文件的不可信数据调用eval()，可能导致用户从恶意SVG模板创建TechDraw页面时执行任意Python代码。

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
FreeCAD FreeCAD >= 0.19, < 1.1.1 affected
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I. Basic Information for CVE-2026-34399

Vulnerability Information
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Vulnerability Title
FreeCAD: Arbitrary Code Execution via eval() on untrusted SVG template scale field in BIM TechDraw Page
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
动态执行代码中指令转义处理不恰当(Eval注入)
Source: CVE Program / CVE List V5
Vulnerability Title
FreeCAD 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeCAD是FreeCAD组织的一款三维参数化计算机辅助设计软件。 FreeCAD 0.19版本至1.1.1之前版本存在代码注入漏洞，该漏洞源于BIM工作台对来自SVG模板文件的不可信数据调用eval()，可能导致用户从恶意SVG模板创建TechDraw页面时执行任意Python代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreeCAD FreeCAD >= 0.19, < 1.1.1 -

II. Public POCs for CVE-2026-34399

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III. Intelligence Information for CVE-2026-34399

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Vendor Advisories for CVE-2026-34399 (1)

Vendor Pages for CVE-2026-34399 (1)

Same Patch Batch · FreeCAD · 2026-08-17 · 3 CVEs total

CVE-2026-34398 7.8 HIGH FreeCAD: Arbitrary Code Execution via eval() on untrusted project file metadata in BIM Wor
CVE-2026-34789 7.0 HIGH FreeCAD: Arbitrary code execution via unsandboxed PyImport_ImportModule in PropertyPythonO

IV. Related Vulnerabilities

Same product: FreeCAD
Same vendor: FreeCAD
Same weakness: CWE-95

V. Comments for CVE-2026-34399

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