Debian dla-4815 : freecad - security update

high Nessus Plugin ID 362867

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4815 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4815-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost October 03, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : freecad Version : 0.20.2+dfsg1-4+deb12u1 CVE ID : CVE-2026-34789 CVE-2026-73234 CVE-2026-73235 Debian Bug : 1144349

Three vulnerabilities were discovered in FreeCAD, an open-source multiplatform 3D parametric modeler, which could result in arbitrary code execution, arbitrary file writes, and the disclosure of local files or triggering of remote network requests.

CVE-2026-34789

When restoring a crafted FCStd document, FreeCAD passed an attacker-controlled module name to the Python interpreter and thereby executed code contained in the imported module. An attacker could execute arbitrary Python code with the privileges of the FreeCAD user.

CVE-2026-73234

When restoring a crafted FCStd document, FreeCAD used attacker-controlled file paths without properly restricting directory traversal or absolute paths. An attacker could write arbitrary content to files accessible to the FreeCAD user, potentially allowing persistence or code execution.

CVE-2026-73235

When restoring a crafted FCStd document, FreeCAD processed XML external entities without disabling external entity or DTD resolution. An attacker could read local files or cause requests to be made to remote servers.

For Debian 12 bookworm, these problems have been fixed in version 0.20.2+dfsg1-4+deb12u1.

We recommend that you upgrade your freecad packages.

For the detailed security status of freecad please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/freecad

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the freecad packages.

Plugin Details

Severity: High

ID: 362867

File Name: debian_DLA-4815.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 10/3/2026

Updated: 10/3/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.18

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-73234

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:freecad-common, p-cpe:/a:debian:debian_linux:freecad-python3, p-cpe:/a:debian:debian_linux:freecad, p-cpe:/a:debian:debian_linux:libfreecad-python3-0.20

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/3/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-34789, CVE-2026-73234, CVE-2026-73235

Detections

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