CVE-2026-73233
FreeCAD: FEM formula incomplete escape
- State
- Published
- Severity
- 8.5 High
- Published
- Aug 11, 2026
- Updated
- Aug 11, 2026
- Reserved
- Aug 11, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
- CWE-94 Improper Control of Generation of Code ('Code Injection')
Affected Products
| Product | Versions |
|---|---|
FreeCADFreeCAD |
|
References
- https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-2rq3-gx3h-489q
- https://github.com/FreeCAD/FreeCAD/pull/31267
- https://github.com/FreeCAD/FreeCAD/pull/31312
- https://github.com/FreeCAD/FreeCAD/commit/0a208ac11cfe7b61c424ee4bb79117138ec50ac2
- https://github.com/FreeCAD/FreeCAD/commit/3f60d202a8246958232e2fbc74ba38a83483b74e
- https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
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