CVE-2026-3234
Mod_proxy_cluster: mod_proxy_cluster: response body corruption via crlf injection
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-93 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Mar 12, 2026 |
| Last Updated | Mar 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat JBoss Core Services
All versions affected Red Hat / Red Hat JBoss Core Services
All versions affected References
Credits
Red Hat would like to thank Coty Sutherland (@csutherl) (IBM) for reporting this issue.