Code Injection in Freecad - CVE-2026-34398
Published: July 28, 2026 / Updated: July 28, 2026
Vulnerability identifier: #VU139899
CSH Severity: High
CVSS v4.0: 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/E:P/U:Amber
CVE-ID: CVE-2026-34398
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Freecadweb
Affected software:
Freecad
Freecad
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation within eval() calls on untrusted .FCStd metadata in BIM Project Manager. A remote attacker can trick a victim to open a specially crafted project file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2026-34398
Install updates from vendor's website.