FreeCAD is a free and open-source multiplatform 3D parametric modeler
Description
FreeCAD is a free and open-source multiplatform 3D parametric modeler
AI Analyst Comment
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
---METADATA---
VENDOR: FreeCAD
PRODUCT: FreeCAD
AFFECTED_VERSIONS: >= 0.19, < 1.1.1
CONFIDENCE: high
MISSING: none
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Description Summary:
FreeCAD contains a second eval injection vulnerability that allows attackers to execute arbitrary code via malicious project files.
Executive Summary:
A severe eval injection vulnerability in FreeCAD permits arbitrary code execution when a victim opens a crafted project file.
Vulnerability Details
CVE-ID: CVE-2026-34399
Affected Software: FreeCAD FreeCAD
Affected Versions: >= 0.19, < 1.1.1
Vulnerability: This vulnerability involves the improper neutralization of directives in dynamically evaluated code (CWE-95). It functions similarly to CVE-2026-34398, where the application fails to safely handle input, allowing for command injection during file parsing.
Business Impact
The CVSS score of 7.8 reflects the high risk of this vulnerability. Exploitation allows an attacker to compromise the local workstation's security, potentially resulting in unauthorized access to sensitive CAD files and other proprietary information stored on the host system.
Remediation Plan
Immediate Action: Update all installations of FreeCAD to version 1.1.1 or later to ensure both this and related eval injection vulnerabilities are addressed.
Proactive Monitoring: Review security logs for suspicious execution patterns originating from the FreeCAD application process.
Compensating Controls: Enforce strict controls on the handling of external CAD project files and utilize endpoint detection and response tools to identify anomalous behavior during file import operations.
Exploitation Status
Public Exploit Available: No confirmed public exploit available.
Analyst Notes: As of August 18, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The presence of multiple similar vulnerabilities highlights a systemic need for improved input validation within the software.
Analyst Recommendation
Given the vulnerability type and the impact, it is critical to update to the latest version of FreeCAD. Users should exercise extreme caution regarding the origin of project files until the software is updated to a non-vulnerable version.