CVE-2024-58379 nodemailer CVE debrief

Who should care

Developers and administrators using nodemailer versions before 6.9.9 should review and update their installations to mitigate potential denial of service attacks. This includes reviewing the official advisory and CVE record to validate affected scope, severity, and vendor guidance. Additionally, security teams and vulnerability management teams should be aware of the potential impact on their systems and take steps to mitigate the vulnerability.

Technical summary

The nodemailer package before version 6.9.9 contains a regular expression denial of service vulnerability in email parsing when the attachDataUrls parameter is set or processing embedded file attachments. This could allow attackers to send specially crafted emails with malicious data URLs or embedded attachments to cause the event loop to hang and deny service. The vulnerability has a CVSS score of 6.9 and a medium severity level. Developers and administrators using nodemailer versions before 6.9.9 should review and update their installations to mitigate potential denial of service attacks.

Defensive priority

Medium-priority defensive review recommended due to potential service impact.

Recommended defensive actions

• Review and update nodemailer to version 6.9.9 or later.
• Monitor email parsing for potential denial of service attempts.
• Implement compensating controls for email processing.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The evidence for this CVE is limited; verify nodemailer versions before 6.9.9 for potential regular expression denial of service vulnerability in email parsing. Defenders should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance. Limited information is available about the vulnerability's impact on specific deployments. Further verification is needed to determine the vulnerability's effects on various environments.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.