MEDIUM 5.3 NVD
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 header
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.
References
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-268h-hp4c-crq3
- https://www.vulncheck.com/advisories/nodemailer-crlf-injection-via-list-header-comments
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-08-31 via NVD.
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