RHSA-2026:57362: Important: OpenShift Container Platform 4.22.11 bug fix and security update

Published Aug 25, 2026
·
Updated

Important: OpenShift Container Platform 4.22.11 bug fix and security update

Other sources

Red Hat OpenShift Container Platform is Red Hat's cloud computingKubernetes application platform solution designed for on-premise or privatecloud deployments.This advisory contains the container images for Red Hat OpenShift ContainerPlatform 4.22.11. See the following advisory for the RPM packages for thisrelease:https://access.redhat.com/errata/RHSA-2026:57361 Space precludes documenting all of the container images in this advisory.See the following Release Notes documentation, which will be updatedshortly for this release, for details about these changes:https://docs.redhat.com/en/documentation/openshiftcontainerplatform/4.22/html/releasenotes/ Security Fix(es): bind: bind9: Potential memory usage beyond configured limits (CVE-2026-11622) bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards (CVE-2026-11721) bind: bind9: Unexpected exit with NSEC and NSEC3 both present (CVE-2026-13204) bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321) kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)For more details about the security issue(s), including the impact, a CVSSscore, acknowledgments, and other related information, refer to the CVEpage(s) listed in the References section.All OpenShift Container Platform 4.22 users are advised to upgrade to theseupdated packages and images when they are available in the appropriaterelease channel. To check for available updates, use the OpenShift CLI (oc)or web console. Instructions for upgrading a cluster are available athttps://docs.redhat.com/en/documentation/openshiftcontainerplatform/4.22/html-single/updatingclusters/index#updating-cluster-cli.

Red Hat

Affected Software

4 affected components
Red Hat Red Hat OpenShift Container Platform for Power
Red Hat Red Hat OpenShift Container Platform for IBM Z and LinuxONE
Red Hat Red Hat OpenShift Container Platform
Red Hat Red Hat OpenShift Container Platform for ARM 64

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade OpenShift Container Platform to a version that resolves this vulnerability.

    Fixed in 4.22.11Patch RHSA-2026:57361
  2. Compensating control

    Use the OpenShift CLI (oc) to inspect release image metadata and verify the release images/digests for the appropriate architectures (x86_64, s390x, ppc64le, aarch64) before/while upgrading.

  3. Compensating control

    Verify the updated release image digests for OpenShift Container Platform 4.22.11 during upgrade: x86_64 sha256:7130a86441e55382a1eecf141edefd4a83c6eb7b27c6cb67883027736b8242b3; s390x sha256:d2fc4065149f9310168334a67e530e58d6a80f302877493e9fee91547accb27f; ppc64le sha256:a0eb0d2d1b0ae972b00535e3f8b25a825efccca03ac01f1682fbd7f7b790d63d; aarch64 sha256:9bf8fa70aacd7119c25e466d563b24b867de1c16648a975978cfb42de7aacc6a.

Event History

Aug 25, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·01:05 PM
Data Sourced
via Red Hat·01:05 PM
Severity

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