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CVE-2026-8168

Full vulnerability record from the local CVENow database.

Description

Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.

Severity
HIGH
CVSS score
7.1 (v4.0)
Vulnerability status
Awaiting Analysis
Source identifier
a59d8014-47c4-4630-ab43-e1b13cbe58e3
Published
2026-10-19 14:17:08.840000
Last modified
2026-10-19 21:13:39.973000
View original CVE JSON
{
  "id": "CVE-2026-8168",
  "sourceIdentifier": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
  "published": "2026-10-19T14:17:08.840",
  "lastModified": "2026-10-19T21:13:39.973",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements."
    }
  ],
  "affected": [
    {
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
      "affectedData": [
        {
          "vendor": "qt",
          "product": "qt",
          "defaultStatus": "unaffected",
          "cpes": [
            "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
            "cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "qtsvg"
          ],
          "versions": [
            {
              "version": "4.1.0",
              "lessThan": "6.8.9",
              "versionType": "python",
              "status": "affected"
            },
            {
              "version": "6.9.0",
              "lessThan": "6.11.2",
              "versionType": "python",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.1.0",
              "versionType": "python",
              "status": "unknown"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "PASSIVE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-19T14:27:04.849301Z",
          "id": "CVE-2026-8168",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730501",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730590",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730591",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730892",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/731257",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/733245",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/738811",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/743488",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/748966",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://codereview.qt-project.org/c/qt/qtsvg/+/756512",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    },
    {
      "url": "https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-8168:",
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
    }
  ]
}