Advisories

Nodemailer 3.0.0 before 10.4.1 Recipient Allow-List Bypass via addressparser

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Severity
high
Date
Affecting
  • nodemailer >= 3.0.0, < 10.4.1

CWE
  • CWE-436 Interpretation Conflict
CVSS
8.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Ismail Can Guner
Description
Nodemailer 3.0.0 before 10.4.1 contains an address parsing flaw in addressparser that truncates domains at folding whitespace or comments before a dot, allowing attackers to bypass recipient domain restrictions. Attackers can submit crafted to, cc, bcc or replyTo addresses that pass RFC 5322 domain checks but deliver mail to an attacker-chosen address under the application's sender identity.

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