ubuntu-cve-2026-34789
Vulnerability from osv_ubuntu
Published
2026-08-17 21:16
Modified
2026-08-17 21:16
Summary
Details

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, src/App/PropertyPythonObject.cpp in PropertyPythonObject::Restore() passes the attacker-controlled module attribute from serialized PropertyPythonObject XML directly to PyImport_ImportModule() while restoring a crafted FCStd document, which executes module-level Python code, and the legacy pickle branch also imports an attacker-controlled module and invokes its class constructor through PyObject_CallObject(). This issue is fixed in version 1.1.2.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "freecad",
            "binary_version": "0.15.4671+dfsg1-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "freecad",
        "purl": "pkg:deb/ubuntu/freecad@0.15.4671+dfsg1-4?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.14.3702+dfsg-4",
        "0.15.4671+dfsg1-1",
        "0.15.4671+dfsg1-2",
        "0.15.4671+dfsg1-3",
        "0.15.4671+dfsg1-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "freecad",
            "binary_version": "0.16.6712+dfsg1-1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "freecad",
        "purl": "pkg:deb/ubuntu/freecad@0.16.6712+dfsg1-1ubuntu2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.16+dfsg2-3",
        "0.16+dfsg2-3build3",
        "0.16.6712+dfsg1-1",
        "0.16.6712+dfsg1-1ubuntu1",
        "0.16.6712+dfsg1-1ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "freecad",
            "binary_version": "0.18.4+dfsg2-1ubuntu4"
          },
          {
            "binary_name": "freecad-common",
            "binary_version": "0.18.4+dfsg2-1ubuntu4"
          },
          {
            "binary_name": "freecad-python3",
            "binary_version": "0.18.4+dfsg2-1ubuntu4"
          },
          {
            "binary_name": "freecad-runtime",
            "binary_version": "0.18.4+dfsg2-1ubuntu4"
          },
          {
            "binary_name": "libfreecad-python3-0.18",
            "binary_version": "0.18.4+dfsg2-1ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "freecad",
        "purl": "pkg:deb/ubuntu/freecad@0.18.4+dfsg2-1ubuntu4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.18.3+dfsg1-1",
        "0.18.3+dfsg1-4",
        "0.18.4+dfsg1-1",
        "0.18.4+dfsg1-2~build1",
        "0.18.4+dfsg1-2",
        "0.18.4+dfsg1-2ubuntu8",
        "0.18.4+dfsg2-1ubuntu1",
        "0.18.4+dfsg2-1ubuntu2",
        "0.18.4+dfsg2-1ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "freecad",
            "binary_version": "0.19.2+dfsg1-3ubuntu1"
          },
          {
            "binary_name": "freecad-common",
            "binary_version": "0.19.2+dfsg1-3ubuntu1"
          },
          {
            "binary_name": "freecad-python3",
            "binary_version": "0.19.2+dfsg1-3ubuntu1"
          },
          {
            "binary_name": "libfreecad-python3-0.19",
            "binary_version": "0.19.2+dfsg1-3ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "freecad",
        "purl": "pkg:deb/ubuntu/freecad@0.19.2+dfsg1-3ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.19.1+dfsg1-2",
        "0.19.2+dfsg1-3",
        "0.19.2+dfsg1-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, src/App/PropertyPythonObject.cpp in PropertyPythonObject::Restore() passes the attacker-controlled module attribute from serialized PropertyPythonObject XML directly to PyImport_ImportModule() while restoring a crafted FCStd document, which executes module-level Python code, and the legacy pickle branch also imports an attacker-controlled module and invokes its class constructor through PyObject_CallObject(). This issue is fixed in version 1.1.2.",
  "id": "UBUNTU-CVE-2026-34789",
  "modified": "2026-08-17T21:16:00Z",
  "published": "2026-08-17T21:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34789"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-34789"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/commit/81b73925ce22610542367301d8eff4259eb9596e"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/commit/983037f3003dc31f48db36705b86fb3fbe026295"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/commit/e2dc6c8172673642c6856b8b3a5a6accefb18279"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-493w-pp4h-h77v"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-34789"
  ]
}



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