{
  "cveId": "CVE-2026-83609",
  "url": "https://patchblox.com/security/cve/CVE-2026-83609",
  "summary": "CVE-2026-83609 is fixed in node-xmldom on 1 platform by DEBIAN-CVE-2026-83609 (version 0.9.12-1), released September 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-xmldom: xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module",
  "description": "xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.0 until 0.9.12, the shared reg() builder in lib/grammar.js compiles the anchored QName_exact validator with the multiline flag, so ^ and $ validate only one line instead of the complete name. createElementNS, createAttributeNS, createDocumentType, and createAttribute consequently accept a malformed XML name whose first line is valid and whose later text injects markup when serialized through either the default path or requireWellFormed: true. The triggering ECMAScript line terminators are U\u002B000A, U\u002B000D, U\u002B2028, and U\u002B2029. This issue is fixed in @xmldom/xmldom version 0.9.12.",
  "published": "2026-09-01T15:17:38Z",
  "severity": "",
  "epss": 0.00543,
  "epssPercentile": 0.45834,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-xmldom",
      "release": "Debian 14",
      "fixedVersion": "0.9.12-1",
      "fix": "DEBIAN-CVE-2026-83609",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-83609",
      "released": "2026-09-08T02:27:47Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}