CRLF Injection Affecting jbcs-httpd24-mod_proxy_cluster package, versions *


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-RHEL7-JBCSHTTPD24MODPROXYCLUSTER-15541201
  • published14 Mar 2026
  • disclosed26 Feb 2026

Introduced: 26 Feb 2026

CVE-2026-3234  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 jbcs-httpd24-mod_proxy_cluster.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jbcs-httpd24-mod_proxy_cluster package and not the jbcs-httpd24-mod_proxy_cluster package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1