Main Vulnerability Database Vulnerabilities #VU139902

Path traversal in Freecad - CVE-2026-73234

Published: July 28, 2026 / Updated: August 13, 2026

Vulnerability identifier: #VU139902

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-73234

CWE-ID: CWE-22

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the PropertyFileIncluded::Restore() function. A remote attacker can trick a victim to open a specially crafted .FCStd file and write arbitrary files on the system.

Affected software

Freecad
Debian Linux
freecad (Debian package)

How to mitigate CVE-2026-73234

Install updates from vendor's website.

Freecad - update to 1.1.2
freecad (Debian package) - update to 1.0.0+dfsg-8+deb13u3

Links to Public Exploits and PoC-codes

Exploit #12857 - FCStd path traversal allows arbitrary file write via unsanitized file attribute in PropertyFileIncluded::Restore() (July 28, 2026)

External References

https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-5vqh-3v38-jw2r