MEDIUM 6.9 NVD
CVE-2026-110870
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 angl
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.
References
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-g73g-hqqh-jr95
- https://www.vulncheck.com/advisories/nodemailer-before-10.0.13-improper-input-validation-v
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-14 via NVD.
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