CVE-2026-3234 MEDIUM

CVE-2026-3234: Mod_proxy_cluster: mod_proxy_cluster: response body corruption via crlf injection

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-93 · CRLF injection
Published March 12, 2026
Last update March 12, 2026

CVSS base score

4.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 12, 2026 CVE published
March 12, 2026 Record updated