{
  "cveId": "CVE-2026-110869",
  "url": "https://patchblox.com/security/cve/CVE-2026-110869",
  "summary": "CVE-2026-110869 is fixed in node-nodemailer on 1 platform by DEBIAN-CVE-2026-110869 (version 10.0.13\u002B~8.0.2-1), released October 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-nodemailer: Nodemailer 3.0.0 before 10.0.13 has a regular expression denial of service in SMTPConnection._actionEHLO, whose four...",
  "description": "Nodemailer 3.0.0 before 10.0.13 has a regular expression denial of service in SMTPConnection._actionEHLO, whose four AUTH mechanism detection regexes contain overlapping whitespace sub-patterns that backtrack quadratically. A malicious or man-in-the-middle SMTP server can reply to EHLO with 250-AUTH, a long whitespace run and a non-matching token, blocking the Node.js event loop for tens of seconds to hours before authentication.",
  "published": "2026-10-14T23:17:28Z",
  "severity": "",
  "epss": 0.00367,
  "epssPercentile": 0.30732,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-nodemailer",
      "release": "Debian 14",
      "fixedVersion": "10.0.13\u002B~8.0.2-1",
      "fix": "DEBIAN-CVE-2026-110869",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-110869",
      "released": "2026-10-16T15:52:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}