CVE-2026-110871 (GCVE-0-2026-110871)

Vulnerability from cvelistv5 – Published: 2026-10-14 22:52 – Updated: 2026-10-14 22:52
VLAI
Title
Nodemailer 3.0.0 before 10.0.10 Quadratic DKIM Header Unfolding Denial of Service
Summary
Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines, blocking the Node.js event loop during DKIM signing.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6104 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
nodemailer nodemailer Affected: 3.0.0 , < 10.0.10 (semver)
Unaffected: 10.0.10 (semver)
    cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-30 00:00
Credits
manus-pi manus-use
Show details on NVD website
To clipboard 

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}



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