Status: UPDATED
| Advisory ID: CVE-2026-93576
Key Details
| CVE | CVE-2026-93576 |
| CVSS Score / Version | 7.5 (High) / CVSS v3.1 |
| Updated | 2026-09-25 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is high; availability impact is none. |
| Affected products | Red Hat Red Hat JBoss Enterprise Application Platform 7, Red Hat Red Hat Single Sign-On 7, and Red Hat Red Hat build of Apache Camel for Spring Boot 4 |
| Classified as | CWE-93 (Improper Neutralization of CRLF Sequences ('CRLF Injection')) |
Affected Products, Subsystems & Sectors
| Subsystems | General OT |
| Sectors | Multiple |
What to Know
A flaw was found in Netty netty-codec-smtp. The component does not properly validate Carriage Return (CR) and Line Feed (LF) characters in the SMTP command-name field. A remote attacker, if an application routes untrusted input into this field, can embed CR/LF characters to inject arbitrary SMTP commands. This can lead to SMTP command smuggling, allowing for unauthorized email relay or spoofing of sender/recipient addresses. While the impact is significant, the real-world exploitability is considered lower as applications typically do not place user-controlled data in the command-name field. (NVD)
What to Do
Monitor Red Hat's web page for any future patch releases.
References