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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 13 Sep 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Nodemailer 9.1.0 through 10.0.4 Denial of Service via Quadratic Address Parsing | |
| First Time appeared |
Nodemailer
Nodemailer nodemailer |
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| Weaknesses | CWE-407 | |
| CPEs | cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Nodemailer
Nodemailer nodemailer |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-13T11:42:26.391Z
Reserved: 2026-09-13T11:15:41.904Z
Link: CVE-2026-90776
No data.
Status : Received
Published: 2026-09-13T12:17:16.547
Modified: 2026-09-13T12:17:16.547
Link: CVE-2026-90776
No data.
OpenCVE Enrichment
Updated: 2026-09-14T03:00:14Z
Weaknesses