CVE-2024-58379
nodemailer before 6.9.9 ReDoS via attachDataUrls parameter
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 31, 2026
- Updated
- Aug 31, 2026
- Reserved
- Aug 16, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-1333 Inefficient Regular Expression Complexity
Affected Products
| Product | Versions |
|---|---|
nodemailernodemailer |
|
References
- GitHub Security Advisory (GHSA-9h6g-pr28-7cqp)vendor-advisory
- VulnCheck Advisory: nodemailer before 6.9.9 ReDoS via attachDataUrls parameterthird-party-advisory
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