CVE-2026-73235
FreeCAD: XXE file read and SSRF via external entity injection in Document.xml SAX parser
- State
- Published
- Severity
- 6.1 Medium
- Published
- Aug 11, 2026
- Updated
- Aug 12, 2026
- Reserved
- Aug 11, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N | GitHub_M |
Weaknesses
- CWE-611 Improper Restriction of XML External Entity Reference
Affected Products
| Product | Versions |
|---|---|
FreeCADFreeCAD |
|
References
- https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-cp6c-87x9-xf49
- https://github.com/FreeCAD/FreeCAD/pull/31271
- https://github.com/FreeCAD/FreeCAD/pull/31280
- https://github.com/FreeCAD/FreeCAD/commit/7d1b8f5806db578db99feb348e55a6b0eaff7c73
- https://github.com/FreeCAD/FreeCAD/commit/d98eaf1f194400d8a8886fe6780c54f5c68ea2c3
- https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
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