UBUNTU-CVE-2026-73233 (CVE-2026-73233)

Vulnerability from osv_ubuntu – Published: 2026-08-11 20:18 – Updated: 2026-09-30 21:32 – Source website
VLAI
Details

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the FEM Displacement Constraint task dialog in src/Mod/Fem/Gui/TaskFemConstraintDisplacement.cpp passes the xDisplacementFormula, yDisplacementFormula, and zDisplacementFormula fields of a Fem::ConstraintDisplacement object through TaskDlgFemConstraintDisplacement::accept() into Gui::Command::doCommand. The escaping helper neutralizes quotation marks but not backslashes, allowing crafted formula text to terminate the generated Python string and execute arbitrary Python code with the FreeCAD process's privileges when a victim accepts the dialog. This issue is fixed in version 1.1.2.

Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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, the FEM Displacement Constraint task dialog in src/Mod/Fem/Gui/TaskFemConstraintDisplacement.cpp passes the xDisplacementFormula, yDisplacementFormula, and zDisplacementFormula fields of a Fem::ConstraintDisplacement object through TaskDlgFemConstraintDisplacement::accept() into Gui::Command::doCommand. The escaping helper neutralizes quotation marks but not backslashes, allowing crafted formula text to terminate the generated Python string and execute arbitrary Python code with the FreeCAD process\u0027s privileges when a victim accepts the dialog. This issue is fixed in version 1.1.2.",
  "id": "UBUNTU-CVE-2026-73233",
  "modified": "2026-09-30T21:32:09Z",
  "published": "2026-08-11T20:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-73233"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-73233"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-2rq3-gx3h-489q"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeCAD/FreeCAD/pull/31312"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-73233"
  ]
}



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