{
  "cveId": "CVE-2021-3803",
  "url": "https://patchblox.com/security/cve/CVE-2021-3803",
  "summary": "CVE-2021-3803 is fixed in node-nth-check on 1 platform, first by node-nth-check 1.0.1-1\u002Bdeb10u1build0.18.04.1, released September 17, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-nth-check: nth-check is vulnerable to Inefficient Regular Expression Complexity",
  "description": "nth-check is vulnerable to Inefficient Regular Expression Complexity",
  "published": "2021-09-17T00:15:00Z",
  "severity": "Medium",
  "epss": 0.02206,
  "epssPercentile": 0.82686,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-nth-check",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.1-1\u002Bdeb10u1build0.18.04.1",
      "fix": "node-nth-check 1.0.1-1\u002Bdeb10u1build0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-node-nth-check-1.0.1-1-deb10u1build0.18.04.1",
      "released": "2021-09-17T00:15:00Z"
    },
    {
      "platform": "linux",
      "product": "node-nth-check",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.0.1-1\u002Bdeb10u1build0.20.04.1",
      "fix": "node-nth-check 1.0.1-1\u002Bdeb10u1build0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-node-nth-check-1.0.1-1-deb10u1build0.20.04.1",
      "released": "2021-09-17T00:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}