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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.4
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.19%
- CWE
- CWE-93
- Published
- 2026-08-31
- Last modified
- 2026-09-02
Affected products
- nodemailer nodemailer
- nodemailer nodemailer
Weakness type
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- CVE-2026-33606 — Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands...