{
  "cveId": "CVE-2018-1061",
  "url": "https://patchblox.com/security/cve/CVE-2018-1061",
  "summary": "CVE-2018-1061 is fixed in 2 products on 1 platform, first by Python 3.6 3.6.5, released March 28, 2018. 1 other affected product has no fix yet. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Python 3.5 and 2 others: python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking\u2026",
  "description": "python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method.  An attacker could use this flaw to cause denial of service.",
  "published": "2018-06-19T12:29:00Z",
  "severity": "",
  "cvss": 7.5,
  "cwe": "CWE-20",
  "epss": 0.04742,
  "epssPercentile": 0.91921,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2018-1061",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Python 3.6",
      "fixedVersion": "3.6.5",
      "fix": "Python 3.6 3.6.5",
      "url": "https://patchblox.com/security/fix/windows-app/python.python.3.6-3.6.5",
      "released": "2018-03-28T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Python 3.7",
      "fixedVersion": "3.7.1",
      "fix": "Python 3.7 3.7.1",
      "url": "https://patchblox.com/security/fix/windows-app/python.python.3.7-3.7.1",
      "released": "2018-10-20T00:00:00Z"
    }
  ],
  "noFixYet": [
    {
      "platform": "Windows apps",
      "product": "Python 3.5",
      "status": "no-fix",
      "affectedVersion": "3.5.4"
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}