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.

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)

EPSS: 0.003 (22.6th percentile) — read the EPSS interpretation.

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.

Affected products

Nodemailer

Weakness classification (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (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.