FreeCAD: XXE file read and SSRF via external entity injection in Document.xml SAX parser

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73235
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-11 20:18:48 UTC
Updated2026-08-11 20:18:48 UTC
DescriptionFreeCAD 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Problem Types: CWE-611 | CWE-611 CWE-611: Improper Restriction of XML External Entity Reference

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA FreeCAD FreeCAD affected < 1.1.2 Not specified

References

ReferenceSourceLinkTags
github.com/FreeCAD/FreeCAD/commit/7d1b8f5806db578db99feb348e55a6b0eaff7c73 [email protected] github.com
github.com/FreeCAD/FreeCAD/pull/31271 [email protected] github.com
github.com/FreeCAD/FreeCAD/commit/d98eaf1f194400d8a8886fe6780c54f5c68ea2c3 [email protected] github.com
github.com/FreeCAD/FreeCAD/pull/31280 [email protected] github.com
github.com/FreeCAD/FreeCAD/security/advisories/GHSA-cp6c-87x9-xf49 [email protected] github.com
github.com/FreeCAD/FreeCAD/releases/tag/1.1.2 [email protected] github.com
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