# CVE-2026-82853

## Summary

- **CVE ID:** CVE-2026-82853
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-93
- **Published:** Aug 31, 2026
- **Last Modified:** Aug 31, 2026

## Description

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.

## Affected Products

- nodemailer — nodemailer (0)
- nodemailer — nodemailer (8.0.5)

## References

- [CNA](https://github.com/nodemailer/nodemailer/security/advisories/GHSA-vvjj-xcjg-gr5g)
- [CNA](https://www.vulncheck.com/advisories/nodemailer-before-8.0.5-smtp-command-injection-via-crlf)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.73%
- **EPSS Percentile:** 52.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._