Vulnerability Description
FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity resolution or external DTD loading. When Document::restore() opens the document, external entities can read local files through the file URI scheme or initiate server-side requests through the http URI scheme, and resolved content can flow through the characters() callback. This issue is fixed in version 1.1.2.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/FreeCAD/FreeCAD/commit/7d1b8f5806db578db99feb348e55a6b0eaff7c
- https://github.com/FreeCAD/FreeCAD/commit/d98eaf1f194400d8a8886fe6780c54f5c68ea2
- https://github.com/FreeCAD/FreeCAD/pull/31271
- https://github.com/FreeCAD/FreeCAD/pull/31280
- https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
- https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-cp6c-87x9-xf49
FAQ
What is CVE-2026-73235?
CVE-2026-73235 is a vulnerability with a CVSS score of 6.1 (MEDIUM). FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-cont...
How severe is CVE-2026-73235?
CVE-2026-73235 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73235?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.