CVE-2026-38728: n/a
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
AI Analysis
Technical Summary
CVE-2026-38728 describes a denial of service vulnerability in Nodemailer smtp_server prior to version 3.18.3. The flaw exists in the SMTPStream._write function within the lib/smtp-stream.js file, which can be triggered remotely by an attacker to disrupt service availability. The vulnerability was reserved in April 2026 and published in May 2026. No CVSS score or vendor advisory is available to confirm patch status or exploitation details.
Potential Impact
The vulnerability allows a remote attacker to cause a denial of service condition, potentially disrupting email sending functionality that relies on the affected Nodemailer smtp_server versions. There is no evidence of exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions before 3.18.3, upgrading to version 3.18.3 or later is recommended if confirmed by the vendor. Monitor official Nodemailer channels for updates and apply patches as soon as they become available.
CVE-2026-38728: n/a
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
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-38728 describes a denial of service vulnerability in Nodemailer smtp_server prior to version 3.18.3. The flaw exists in the SMTPStream._write function within the lib/smtp-stream.js file, which can be triggered remotely by an attacker to disrupt service availability. The vulnerability was reserved in April 2026 and published in May 2026. No CVSS score or vendor advisory is available to confirm patch status or exploitation details.
Potential Impact
The vulnerability allows a remote attacker to cause a denial of service condition, potentially disrupting email sending functionality that relies on the affected Nodemailer smtp_server versions. There is no evidence of exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions before 3.18.3, upgrading to version 3.18.3 or later is recommended if confirmed by the vendor. Monitor official Nodemailer channels for updates and apply patches as soon as they become available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a073a04ec166c07b05c5b30
Added to database: 5/15/2026, 3:21:40 PM
Last enriched: 5/15/2026, 3:37:00 PM
Last updated: 6/10/2026, 2:44:10 PM
Views: 52
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