{
  "fix": "Python 3.13 3.13.13",
  "url": "https://patchblox.com/security/fix/windows-app/python.python.3.13-3.13.13",
  "summary": "Python 3.13 3.13.13, released April 7, 2026, fixes 7 CVEs in Python 3.13. None of them is reported as exploited. Patch Radar priority: High. The latest Python 3.13 is 3.13.17, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "Python 3.13 3.13.13",
  "released": "2026-04-07T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-4224, high severity",
  "supported": true,
  "cveCount": 7,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00717,
  "maxCvss": 8.1,
  "appliesTo": [
    {
      "product": "Python 3.13",
      "productUrl": "https://patchblox.com/security/product/windows-app/python-3.13",
      "fixedVersion": "3.13.13",
      "latestVersion": "3.13.17",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Python 3.13",
    "latestVersion": "3.13.17",
    "productUrl": "https://patchblox.com/security/product/windows-app/python-3.13"
  },
  "cves": [
    {
      "cveId": "CVE-2026-4224",
      "url": "https://patchblox.com/security/cve/CVE-2026-4224",
      "title": "Stack overflow parsing XML with deeply nested DTD content models",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.1,
      "epss": 0.00717,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-3644",
      "url": "https://patchblox.com/security/cve/CVE-2026-3644",
      "title": "Incomplete control character validation in http.cookies",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.1,
      "epss": 0.00508,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-4519",
      "url": "https://patchblox.com/security/cve/CVE-2026-4519",
      "title": "webbrowser.open() allows leading dashes in URLs",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.0032,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-2297",
      "url": "https://patchblox.com/security/cve/CVE-2026-2297",
      "title": "SourcelessFileLoader does not use io.open_code()",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.1,
      "epss": 0.0022,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-3479",
      "url": "https://patchblox.com/security/cve/CVE-2026-3479",
      "title": "pkgutil.get_data() does not enforce documented restrictions",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 0,
      "epss": 0.00253,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-3446",
      "url": "https://patchblox.com/security/cve/CVE-2026-3446",
      "title": "Base64 decoding stops at first padded quad by default",
      "priority": "Routine",
      "severity": "moderate",
      "cvss": 6,
      "epss": 0.00188,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-13462",
      "url": "https://patchblox.com/security/cve/CVE-2025-13462",
      "title": "tarfile: Skip DIRTYPE normalization during GNU LONGNAME/LONGLINK handling",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 3.3,
      "epss": 0.00171,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}