CVE-2026-82854
Gravedad CVSS v4.0:
CRÍTICA
Tipo:
CWE-93
Neutralización incorrecta de secuencias de retornos de carro y saltos de linea (CRLF)
Fecha de publicación:
31/08/2026
Última modificación:
31/08/2026
Descripción
*** Pendiente de traducción *** Nodemailer before 8.0.4 is vulnerable to SMTP command injection through the unsanitized envelope.size parameter. When an application passes a custom envelope object with a size property containing CRLF characters to sendMail(), the value is concatenated into the SMTP MAIL FROM command (as SIZE=...) without sanitization, allowing injection of arbitrary SMTP commands such as RCPT TO to silently add attacker-controlled recipients. Exploitation requires the application to expose the envelope size to attacker-controlled input, as Nodemailer does not include size in the default auto-constructed envelope.
Impacto
Puntuación base 4.0
9.30
Gravedad 4.0
CRÍTICA
Puntuación base 3.x
9.80
Gravedad 3.x
CRÍTICA