HIGH

CVE-2026-92596

2026-09-16 CVSS v3.1

CVSS

7.5

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.

Weakness (CWE)

CWE-400 Uncontrolled Resource Consumption

EPSS Score

0.45%

Probability of exploitation in next 30 days

38.7th percentile

References

https://github.com/nodemailer/nodemailer/commit/34da642 https://github.com/nodemailer/nodemailer/commit/7cc38af https://github.com/nodemailer/nodemailer/commit/83b8c48 https://github.com/nodemailer/nodemailer/commit/9116da9 https://github.com/nodemailer/nodemailer/security/advisories/GHSA-2x7j-588g-ccc2 https://www.vulncheck.com/advisories/nodemailer-before-9.1.0-denial-of-service-via-addressparser

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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