{
  "cveId": "CVE-2026-83614",
  "url": "https://patchblox.com/security/cve/CVE-2026-83614",
  "summary": "CVE-2026-83614 is fixed in node-xmldom on 1 platform by DEBIAN-CVE-2026-83614 (version 0.9.12-1), released September 8, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "xmldom: Quadratic-time parsing via the malformed-input recovery path \u2014 \u0060parseElementStartPart\u0060 re-scan and \u0060normalize()\u0060 adjacent-text merge",
  "description": "xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom versions 0.3.0 through 0.6.0, two independent quadratic paths can cause denial of service. In lib/sax.js, parseElementStartPart repeatedly rescans a malformed tag name to the next \u003E during single-character recovery; in lib/dom.js, normalize() repeatedly removes and appends adjacent text nodes, causing quadratic reindexing and string rebuilding. The first path is reachable through default DOMParser.parseFromString() processing, while the second is also reachable through a direct normalize() call on a programmatically constructed DOM, and endDocument invokes that normalization after parsing. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom.",
  "published": "2026-09-01T15:17:39Z",
  "severity": "Important",
  "cwe": "Uncontrolled Resource Consumption",
  "epss": 0.0059,
  "epssPercentile": 0.48481,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83614",
  "fixes": [
    {
      "platform": "linux",
      "product": "node-xmldom",
      "release": "Debian 14",
      "fixedVersion": "0.9.12-1",
      "fix": "DEBIAN-CVE-2026-83614",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-83614",
      "released": "2026-09-08T02:27:47Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}