CVE-2026-82661

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-268h-hp4c-crq3
https://www.vulncheck.com/advisories/nodemailer-crlf-injection-via-list-header-comments
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-268h-hp4c-crq3

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-31 09:17

Updated : 2026-09-10 15:48

NVD link : CVE-2026-82661

Mitre link : CVE-2026-82661

CVE.ORG link : CVE-2026-82661

JSON object : View

Products Affected

No product.

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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