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Advisories

Nodemailer before 10.0.13 Improper Input Validation via Angle-Bracket Address Comments

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Severity
medium
Date
Affecting

  • nodemailer >= 3.0.0, < 10.0.13

CWE
  • CWE-20 Improper Input Validation
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
StarPlatinu
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.

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