CVE-2026-82853

MEDIUM CVSS 4.0: 6.9 EPSS 0.73%
Updated Sep 10, 2026
Nodemailer
Parameter Value
CVSS 6.9 (MEDIUM)
Affected Versions before 8.0.5
Fixed In 8.0.5
Type CWE-93
Vendor Nodemailer
Public PoC No

Nodemailer versions before 8.0.5 contain an SMTP command injection vulnerability in the transport name option used in EHLO/HELO commands. The name parameter is concatenated directly into SMTP commands without sanitizing carriage return and line feed characters, allowing attackers to inject arbitrary SMTP commands for email spoofing and phishing attacks.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Nodemailer Nodemailer
cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:*
8.0.5