{
  "fix": "Python 3.13 3.13.15",
  "url": "https://patchblox.com/security/fix/windows-app/python.python.3.13-3.13.15",
  "summary": "Python 3.13 3.13.15, released August 5, 2026, fixes 8 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 3.13.15",
  "released": "2026-08-05T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-11940, high severity",
  "supported": true,
  "cveCount": 8,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0075,
  "maxCvss": 8.7,
  "appliesTo": [
    {
      "product": "Python 3.13",
      "productUrl": "https://patchblox.com/security/product/windows-app/python-3.13",
      "fixedVersion": "3.13.15",
      "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-2026-11940",
      "url": "https://patchblox.com/security/cve/CVE-2026-11940",
      "title": "tarfile extraction filter bypass allows escaping the destination directory",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0075,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-11972",
      "url": "https://patchblox.com/security/cve/CVE-2026-11972",
      "title": "tarfile opened in streaming mode mishandles EOF",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.2,
      "epss": 0.00715,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-15308",
      "url": "https://patchblox.com/security/cve/CVE-2026-15308",
      "title": "Incremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.7,
      "epss": 0.00637,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-15366",
      "url": "https://patchblox.com/security/cve/CVE-2025-15366",
      "title": "IMAP command injection in user-controlled commands",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.1,
      "epss": 0.00431,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-6879",
      "url": "https://patchblox.com/security/cve/CVE-2026-6879",
      "title": "Quadratic Behavior in xml.etree.ElementPath Index Predicates",
      "priority": "Routine",
      "severity": "low",
      "cvss": 2,
      "epss": 0.00355,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-12003",
      "url": "https://patchblox.com/security/cve/CVE-2026-12003",
      "title": "CPython \u003E3.11 Insecure Input Validation resulting in privilege escalation",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.00142,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0864",
      "url": "https://patchblox.com/security/cve/CVE-2026-0864",
      "title": "Configuration Injection via Carriage Return (\\r) in write() method",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.5,
      "epss": 0.00126,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-18503",
      "url": "https://patchblox.com/security/cve/CVE-2026-18503",
      "title": "Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 2.4,
      "epss": 0.00119,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}