Description
An issue in Nodemailer smtp_server before v.3.18.3 allows a remote attacker to cause a denial of service via the SMTPStream._write, lib/smtp-stream.js components
Published: 2026-05-15
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-fv2f-rw9f-v9cm smtp-server's command parser memory exhaustion denial-of-service
History

Sun, 17 May 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Nodemailer
Nodemailer smtp Server
Vendors & Products Nodemailer
Nodemailer smtp Server

Fri, 15 May 2026 18:15:00 +0000

Type Values Removed Values Added
Title Nodemailer smtp_server Denial of Service via SMTPStream._write

Fri, 15 May 2026 16:45:00 +0000

Type Values Removed Values Added
Title Nodemailer smtp_server Denial of Service via SMTPStream._write

Fri, 15 May 2026 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 15 May 2026 15:15:00 +0000

Type Values Removed Values Added
Description An issue in Nodemailer smtp_server before v.3.18.3 allows a remote attacker to cause a denial of service via the SMTPStream._write, lib/smtp-stream.js components
References

Subscriptions

Nodemailer Smtp Server
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-15T15:28:53.678Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-38728

cve-icon Vulnrichment

Updated: 2026-05-15T15:28:48.585Z

cve-icon NVD

Status : Deferred

Published: 2026-05-15T15:16:51.197

Modified: 2026-06-17T10:41:45.860

Link: CVE-2026-38728

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-17T19:41:35Z

Weaknesses