CVE-2026-82853

Name	CVE-2026-82853
Description	Nodemailer versions before 8.0.5 contain an SMTP command injection vulnerability in the transport name option used in EHLO/HELO commands. The name parameter is concatenated directly into SMTP commands without sanitizing carriage return and line feed characters, allowing attackers to inject arbitrary SMTP commands for email spoofing and phishing attacks.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
node-nodemailer (PTS)	bookworm	6.8.0+~6.4.6-1	vulnerable
	trixie	6.10.0+~6.4.17-1+deb13u1	vulnerable
	forky, sid	10.0.10+~8.0.1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
node-nodemailer	source	(unstable)	8.0.11+~8.0.1-1

Notes

[trixie] - node-nodemailer <no-dsa> (Minor issue)
[bookworm] - node-nodemailer <postponed> (Minor issue)
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-vvjj-xcjg-gr5g