Vulnerability in Nodemailer
CVE-2024-58379
nodemailer before 6.9.9 contains a regular expression denial of service vulnerability in email parsing when attachDataUrls parameter is set or processing embedded file attachments. Attackers can send specially crafted emails with malicious data URLs or embedded attachments to cause the event loop to hang and deny service.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.003 (21.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/nodemailer/nodemailer/security/advisories/GHSA-9h6g-pr28-7cqp (vendor-advisory)
- www.vulncheck.com/advisories/nodemailer-before-6.9.9-redos-via-attachdataurls-p… (third-party-advisory)
Frequently asked questions
- What is CVE-2024-58379?
- CVE-2024-58379 is a medium-severity vulnerability in Nodemailer, classified under Inefficient Regular Expression Complexity. CVSS score: 5.3/10. Published 2026-08-31.
- How severe is CVE-2024-58379?
- Medium severity. CVSS v3 base score is 5.3 out of 10.