8.2
High
CVE-2026-110872 Nodemailer from 3.0.0 before 10.0.10 contains a quadratic complexity denial of service vulnerability in the SMTP…
Description
Nodemailer from 3.0.0 before 10.0.10 contains a quadratic complexity denial of service vulnerability in the SMTP client reply parser in SMTPConnection._onData and isPartialResponse. A malicious SMTP server or on-path attacker can stream continuation lines without a completion line before authentication, blocking the Node.js event loop and exhausting memory.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| nodemailer 10.0 | earliest → < 10.0.10 | 10.0.10 |
| nodemailer 3.0 | 3.0.0 → < 10.0.10 | 10.0.10 |
Other CVEs of nodemailer
The 25 CVEs of nodemailer →
CVE-2026-121426
Nodemailer from 3.0.0 before 10.1.4 contains an address parsing vulnerability in addressparser that ends an angle-addr…
8.3
High
CVE-2026-121425
Nodemailer from 3.0.0 before 10.1.4 contains a parsing flaw in addressparser that ends an RFC 5322 group at a…
8.3
High
CVE-2026-121424
Nodemailer from 3.0.0 before 10.1.4 contains an address parsing vulnerability in addressparser that allows remote…
8.3
High
CVE-2026-110871
Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that…
7.1
High