CVE-2026-73233

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.

• CWE-94

• https://github.com/FreeCAD/FreeCAD/commit/0a208ac11cfe7b61c424ee4bb79117138ec50ac2
• https://github.com/FreeCAD/FreeCAD/commit/3f60d202a8246958232e2fbc74ba38a83483b74e
• https://github.com/FreeCAD/FreeCAD/pull/31267
• https://github.com/FreeCAD/FreeCAD/pull/31312
• https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
• https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-2rq3-gx3h-489q
• https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-2rq3-gx3h-489q

Published

Aug 11, 2026

Last Modified

Aug 11, 2026

Status

Received

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