CyberRota Analysis
AI-GeneratedNodemailer versions prior to 8.0.4 are vulnerable to SMTP command injection due to the unsanitized envelope.size parameter, which can be exploited if an application allows user-controlled input to influence this value. Attackers can inject arbitrary SMTP commands, potentially adding unauthorized recipients to emails. Organizations using Nodemailer in their applications should prioritize patching to mitigate this critical vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
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.