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VULNERABILITIES

CVE-2026-82661 Details

Description

Nodemailer before 8.0.9 fails to sanitize carriage return and line feed characters in list comment fields, allowing attackers to inject arbitrary message headers. An attacker with control over list.*.comment parameters can inject CRLF sequences to create additional headers in generated RFC822 messages, altering mail client behavior and message semantics.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-268h-hp4c-crq3 CISA-ADP
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-268h-hp4c-crq3 [email protected]
https://www.vulncheck.com/advisories/nodemailer-crlf-injection-via-list-header-comments [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-82661
NVD Published Date:
Aug 31, 2026
NVD Last Modified:
Sep 10, 2026
Source:
[email protected]
CVE-2026-82661 Details - Not Deferred