{"id":"CVE-2026-121426","title":"Nodemailer 3.0.0 before 10.1.4 Recipient Domain Confusion via addressparser","summary":"Nodemailer from 3.0.0 before 10.1.4 contains an address parsing vulnerability in addressparser that ends an angle-addr at a '>' inside a quoted local part, comment or domain literal. Attackers can submit addresses that validate as an all…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","cvssSource":"cna","cwe":["CWE-20"],"vendor":"nodemailer","product":"nodemailer","affected":["nodemailer >= 3.0.0 < 10.1.4"],"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T14:28:21.474Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121426","references":[{"url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-85x2-q946-cp5h","label":"GitHub Security Advisory (GHSA-85x2-q946-cp5h)"},{"url":"https://www.vulncheck.com/advisories/nodemailer-3.0.0-before-10.1.4-recipient-domain-confusion-via-addressparser","label":"VulnCheck Advisory: Nodemailer 3.0.0 before 10.1.4 Recipient Domain Confusion via addressparser"}],"tags":["cve.org"],"epss":0.00221,"epssPercentile":0.1282,"ingestedAt":"2026-11-05T19:30:42.967Z","slug":"CVE-2026-121426","body":"## Overview\n\nNodemailer from 3.0.0 before 10.1.4 contains an address parsing vulnerability in addressparser that ends an angle-addr at a '>' inside a quoted local part, comment or domain literal. Attackers can submit addresses that validate as an allowed domain but are delivered to an attacker-controlled domain, bypassing recipient allow lists and disclosing message content.\n\n## Affected\n\n- `nodemailer >= 3.0.0 < 10.1.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}