FreeCAD: FEM formula incomplete escape
CVE-2026-73233 is fixed in 2 products on 2 platforms, first by FreeCAD 1.1.2, released July 23, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| FreeCAD | 1.1.2 | FreeCAD 1.1.2 | Jul 23, 2026 |
| Linux | |||
| freecad · Debian 13.5 (trixie) | 1.0.0+dfsg-8+deb13u3 | DEBIAN-CVE-2026-73233 | Aug 27, 2026 |
| freecad · Debian 14 | 1.1.3+dfsg-1 | DEBIAN-CVE-2026-73233 | Aug 27, 2026 |
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