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CVE PROGRAM SOURCE RECORD8.2 High

CVE-2026-110872

Nodemailer 3.0.0 before 10.0.10 Denial of Service via SMTP Reply Parsing

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nodemailer nodemailer

Default version status: unaffected

  • 3.0.0 to < 10.0.10affected
  • 10.0.10unaffected
pkg:npm/nodemailer

References