EUVD-2026-101754

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

CVE-2026-110871

The Nodemailer library (versions 3.0.0 to before 10.0.10 ) is vulnerable to a Denial of Service attack via the MessageParser.parseHeaders function. The root cause is quadratic header unfolding , where attackers provide long headers or large recipient lists that expand into tens of thousands of co...