CVE-2026-73233
HighCVSS 8.5Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
FreeCAD prior to version 1.1.2 has a vulnerability in the FEM Displacement Constraint task dialog that passes xDisplacementFormula, yDisplacementFormula, and zDisplacementFormula fields through TaskDlgFemConstraintDisplacement::accept() into Gui::Command::doCommand. The escaping helper neutralizes quotation marks but not backslashes, allowing crafted formula text to execute arbitrary Python code with the FreeCAD process's privileges.
Risk Assessment
An attacker can exploit this vulnerability to execute arbitrary code in the context of the FreeCAD process, potentially leading to system compromise or data theft.
Recommendation
Update FreeCAD to version 1.1.2 or later, which fixes this vulnerability. Additionally, avoid accepting formulas from untrusted sources.
Original NVD description (English source)
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.