{"id":"CVE-2026-110870","published":"2026-10-14T23:17:28.813","lastModified":"2026-10-15T20:33:06.527","description":"Nodemailer from 3.0.0 before 10.0.13 contains an improper input validation vulnerability in its address parser that fails to strip RFC 5322 comments inside angle-bracket addresses. Attackers can supply recipients like a display name with a parenthesized comment in the domain, so illegal characters reach envelope.to and RCPT TO, causing rejected delivery or parser interpretation conflicts that bypass domain allow-lists.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cwes":["CWE-20"],"vendors":[],"products":[],"references":[{"url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-g73g-hqqh-jr95","tags":[]},{"url":"https://www.vulncheck.com/advisories/nodemailer-before-10.0.13-improper-input-validation-via-angle-bracket-address-comments","tags":[]}],"exploitRefs":[{"url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-g73g-hqqh-jr95","tags":[]}],"hasPoc":true,"ai":null}