HIGHVulnerability
CVE-2026-90776
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.
Properties
- severity
- HIGH
- score
- 7.5
- cve_id
- CVE-2026-90776
- signal_observed_at
- 2026-09-23T04:35:40+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-09-13T12:17:16.547
- last_modified
- 2026-09-16T15:18:42.833
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Inefficient Algorithmic Complexity
DESCRIBED_BY (1)
→[Source]NVD
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