Nodemailer before 9.1.0 contains a quadratic time complexity vulnerability in the addressparser component that allows remote attackers to cause denial of service by supplying a crafted comma-separated address list. Attackers can send a single email with a large number of addresses to block the Node.js event loop for extended periods, consuming 100% CPU and freezing the process.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Sep 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Nodemailer before 9.1.0 contains a quadratic time complexity vulnerability in the addressparser component that allows remote attackers to cause denial of service by supplying a crafted comma-separated address list. Attackers can send a single email with a large number of addresses to block the Node.js event loop for extended periods, consuming 100% CPU and freezing the process. | |
| Title | Nodemailer before 9.1.0 Denial of Service via addressparser | |
| First Time appeared |
Nodemailer
Nodemailer nodemailer |
|
| Weaknesses | CWE-400 | |
| CPEs | cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Nodemailer
Nodemailer nodemailer |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-16T21:47:00.900Z
Reserved: 2026-09-16T13:48:49.970Z
Link: CVE-2026-92596
No data.
Status : Received
Published: 2026-09-16T22:18:30.557
Modified: 2026-09-16T22:18:30.557
Link: CVE-2026-92596
No data.
OpenCVE Enrichment
No data.
Weaknesses