CVE-2026-3234: Red Hat Enterprise Linux 10

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

A flaw was found in mod_proxy_cluster. This vulnerability, a Carriage Return Line Feed (CRLF) injection in the decodeenc() function, allows a remote attacker to bypass input validation. By injecting CRLF sequences into the cluster configuration, an attacker can corrupt the response body of INFO endpoint responses. Exploitation requires network access to the MCMP protocol port, but no authentication is needed.

Affected products

• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 9
• Red Hat Red Hat JBoss Core Services

Published 2026-03-12. Last modified 2026-06-17.