CVE-2026-6210 Type confusion and heap-buffer-overflow in Qt SVG marker handling causing application crash

[
  {
    "vendor": "The Qt Company",
    "product": "Qt",
    "repo": "git://code.qt.io/qt/qtsvg.git",
    "modules": [
      "Qt SVG"
    ],
    "programFiles": [
      "src/svg/qsvgstructure.cpp"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "6.7.0",
        "lessThan": "6.8.8",
        "versionType": "python"
      },
      {
        "status": "affected",
        "version": "6.9.0",
        "lessThan": "6.11.1",
        "versionType": "python"
      }
    ],
    "defaultStatus": "unaffected"
  }
]