CVE-2026-73233

Name	CVE-2026-73233
Description	FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the FEM Displacement Constraint task dialog in src/Mod/Fem/Gui/TaskFemConstraintDisplacement.cpp passes the xDisplacementFormula, yDisplacementFormula, and zDisplacementFormula fields of a Fem::ConstraintDisplacement object through TaskDlgFemConstraintDisplacement::accept() into Gui::Command::doCommand. The escaping helper neutralizes quotation marks but not backslashes, allowing crafted formula text to terminate the generated Python string and execute arbitrary Python code with the FreeCAD process's privileges when a victim accepts the dialog. This issue is fixed in version 1.1.2.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
freecad (PTS)	bullseye (security), bullseye	0.19.1+dfsg1-2+deb11u1	vulnerable
	bookworm	0.20.2+dfsg1-4	vulnerable
	trixie	1.0.0+dfsg-8+deb13u2	vulnerable
	sid	1.1.1+dfsg-3	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
freecad	source	(unstable)	(unfixed)

Notes

https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-2rq3-gx3h-489q
https://github.com/FreeCAD/FreeCAD/pull/31312
Fixed by: https://github.com/FreeCAD/FreeCAD/commit/3f60d202a8246958232e2fbc74ba38a83483b74e (1.1.2)