{
  "cveId": "CVE-2026-92597",
  "url": "https://patchblox.com/security/cve/CVE-2026-92597",
  "summary": "CVE-2026-92597 is fixed in node-nodemailer on 1 platform by DEBIAN-CVE-2026-92597 (version 10.0.0\u002B~8.0.1-1), released September 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-nodemailer: Nodemailer versions \u003E= 6.9.16 and \u003C 9.1.0 mis-parse RFC 5322 comments in email addresses: in lib/addressparser, a com...",
  "description": "Nodemailer versions \u003E= 6.9.16 and \u003C 9.1.0 mis-parse RFC 5322 comments in email addresses: in lib/addressparser, a comment closed immediately before a non-break character causes the tokenizer to concatenate the atoms surrounding the comment instead of treating the comment as folding whitespace that terminates the domain. A recipient address such as user@good-corp.com(x)evil.com is therefore read by Nodemailer as the single domain good-corp.comevil.com (registrable domain comevil.com, which an attacker can register) and used for both the SMTP envelope (RCPT TO) and the emitted To:/From: headers, while a conformant RFC 5322 parser terminates the domain at the comment and reads good-corp.com. An application that validates the recipient domain with a strict RFC 5322 parser (without inspecting parse defects) or a naive prefix/substring allow-list and then hands the raw address to Nodemailer can be induced to deliver mail to a domain the attacker controls. Fixed in 9.1.0.",
  "published": "2026-09-16T22:18:30Z",
  "severity": "",
  "epss": 0.00382,
  "epssPercentile": 0.32464,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-nodemailer",
      "release": "Debian 14",
      "fixedVersion": "10.0.0\u002B~8.0.1-1",
      "fix": "DEBIAN-CVE-2026-92597",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-92597",
      "released": "2026-09-18T18:19:38Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}