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Vulnerability · Published Aug 11, 2026 · Assigned by GitHub_M

CVE-2026-73234FreeCAD: FCStd path traversal allows arbitrary file write via unsanitized file attribute in PropertyFileIncluded::Restore()

High 7.8

In plain English

A high-severity path traversal in FreeCAD from FreeCAD. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 85.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, PropertyFileIncluded::Restore() in src/App/PropertyFile.cpp concatenates an attacker-controlled file or data attribute from Document.xml with the document transient path without rejecting directory components, absolute paths, or parent traversal. A crafted .FCStd archive with a matching FileIncluded XML attribute and ZIP entry can therefore write attacker-controlled content to arbitrary locations accessible to the FreeCAD user, potentially enabling persistence, credential compromise, configuration replacement, or code execution. This issue is fixed in version 1.1.2.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12freecad0.20.2+dfsg1-4+deb12u1DEBIAN-CVE-2026-73234
Debian:13freecad1.0.0+dfsg-8+deb13u3DEBIAN-CVE-2026-73234
Debian:14freecad1.1.3+dfsg-1DEBIAN-CVE-2026-73234
Ubuntu:22.04:LTSfreecadno fix listedUBUNTU-CVE-2026-73234
Ubuntu:26.10freecadno fix listedUBUNTU-CVE-2026-73234

Affected products (as reported)

VendorProductVersions
FreeCAD FreeCAD < 1.1.2

Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References