CVE-2021-4047: Red Hat Openshift

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.

Affected products

• Red Hat Openshift: version 4.9 only

Published 2022-04-11. Last modified 2026-06-17.