CVE-2026-121424
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Nov 03, 2026
Vendor
unknown
Description
Nodemailer from 3.0.0 before 10.1.4 contains an address parsing vulnerability in addressparser that allows remote attackers to redirect recipients by ending nested RFC 5322 comments at the first closing parenthesis. Attackers can submit addresses whose nested comment hides an attacker address, bypassing conformant validators and recipient allow lists to receive mail or spoof senders in mailparser.