XML External Entity injection in Freecad - CVE-2026-73235
Published: July 28, 2026 / Updated: August 13, 2026
Vulnerability identifier: #VU139904
CSH Severity: Medium
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-73235
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input in Document.xml SAX parser. A remote attacker can trick a victim to open a specially crafted .FCStd file and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
Affected software
Freecad
Debian Linux
freecad (Debian package)
Debian Linux
freecad (Debian package)
How to mitigate CVE-2026-73235
Install updates from vendor's website.
Freecad - update to 1.1.2
freecad (Debian package) - update to 1.0.0+dfsg-8+deb13u3
freecad (Debian package) - update to 1.0.0+dfsg-8+deb13u3