What is CVE-2026-3234?

CVE-2026-3234 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under CRLF Injection. CVSS score: 4.3/10. Published 2026-03-12.

How severe is CVE-2026-3234?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-3234

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 configu…

Vulnerability class: CRLF Injection

EPSS: 0.001 (32.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-93 — CRLF Injection

References

access.redhat.com/security/cve/CVE-2026-3234 (vdb-entry, x_refsource_REDHAT)
RHBZ#2442889 (issue-tracking, x_refsource_REDHAT)

Frequently asked questions

What is CVE-2026-3234?: CVE-2026-3234 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under CRLF Injection. CVSS score: 4.3/10. Published 2026-03-12.
How severe is CVE-2026-3234?: Medium severity. CVSS v3 base score is 4.3 out of 10.