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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-90776

Nodemailer 9.1.0 through 10.0.4 Denial of Service via Quadratic Address Parsing

Description

Nodemailer versions 9.1.0 through 10.0.4 contain a quadratic time complexity vulnerability in the addressparser component when parsing email addresses with RFC 5322 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js event loop for several seconds, causing denial of service.

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

  • 9.1.0 to < 10.0.5affected
  • 10.0.5unaffected
pkg:npm/nodemailer

References