node-nodemailer: Nodemailer versions 9.1.0 through 10.0.4 contain a quadratic time complexity vulnerability in the addressparser compo...
CVE-2026-90776 is fixed in node-nodemailer on 1 platform by DEBIAN-CVE-2026-90776 (version 10.0.10+~8.0.1-1), released September 20, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| node-nodemailer · Debian 14 | 10.0.10+~8.0.1-1 | DEBIAN-CVE-2026-90776 | Sep 20, 2026 |
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