Path traversal in Freecad - #VU153054
Published: October 1, 2026
Vulnerability identifier: #VU153054
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to write arbitrary files.
The vulnerability exists due to improper limitation of a pathname to a restricted directory in PropertyPostDataObject::RestoreDocFile() when extracting VTK multiblock data from a crafted .FCStd file. A remote attacker can trick the victim into opening a crafted .FCStd file to write arbitrary files.
The FEM module is automatically loaded when the document contains a Fem::FemPostPipeline object, so the FEM workbench does not need to be open.
Affected software
Freecad
Remediation
Install security update from vendor's website.
Freecad - update to 1.1.4