RHBA-2026:12097 - Bug Fix Advisory

Topic

Red Hat OpenShift Container Platform release 4.21.13 is now available with updates to packages and images that fix several bugs.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

This advisory contains the container images for Red Hat OpenShift Container Platform 4.21.13. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2026:12092

Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:

https://docs.redhat.com/en/documentation/openshift_container_platform/4.21/html/release_notes/

Solution

For OpenShift Container Platform 4.21 see the following documentation, which will be updated shortly for this release, for important instructions
on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.redhat.com/en/documentation/openshift_container_platform/4.21/html/release_notes/

You can download the oc tool and use it to inspect release image metadata
for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests
can be found at
https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

The sha values for the release are as follows:

(For x86_64 architecture)
The image digest is sha256:987db16d72f3748b61aca7f176b81da4c9bd2ea8ffac1c320ae672463567b0fc

(For s390x architecture)
The image digest is sha256:352bd5fbeb944cdd2c5dd2a48629267fc824a773d26cad35a27dd758e922eb88

(For ppc64le architecture)
The image digest is sha256:6a7859e1cca65baa2ff8728d08cebd8aab7ec0e7fdcf1fbcab6a16292f14118a

(For aarch64 architecture)
The image digest is sha256:2b5f5ea34aa925e66d74c66f51adf99bb6a0da4de9b0daa6f8c8beb09f39fa00

All OpenShift Container Platform 4.21 users are advised to upgrade to these updated packages and images when they are available in the appropriate
release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.21/html-single/updating_clusters/index#updating-cluster-cli.

Fixes

• OCPBUGS-76447 - CPO is missing the UserAgent in the telemetry options when authenticating to Azure Cloud
• OCPBUGS-78055 - [release-4.21] console-plugin-template is using an old version of the SDK
• OCPBUGS-79424 - [release-4.21]NMStateConfig discarded as "dirty" when agent-config is on disk
• OCPBUGS-81634 - [4.21] UDN DHCP outage on hosted controlplane / hypershift clusters
• OCPBUGS-81677 - Authentication operator can't validate ROPC grant flow against ADFS OIDC IdP after cluster have been updated to 4.20.z
• OCPBUGS-81743 - oc-mirror generates empty status field in cluster resources.
• OCPBUGS-82037 - openshift-console-operator pod should honor the renew of service serving cert
• OCPBUGS-82544 - Gateway Controller coexistence with Istio is broken due to missing trustBundleName
• OCPBUGS-83390 - In SNO clusters MCC cannot take the lease after the node is rebooted
• OCPBUGS-83708 - [Automated] Update AMI Whitelist
• OCPBUGS-83814 - [4.21] sync 4.22 ovnk to 4.21 (dummy bug)
• OCPBUGS-83864 - [release-4.22][Techpreview] Run e2e presubmits on openshift/azure-service-operator
• OCPBUGS-83874 - CLONE - USBGuardService does not activate with Compliance Operator DISA-STIG profile
• OCPBUGS-84252 - Component Readiness: [Test Framework] [Pathological Events] ConfigDriftMonitorStopped and RemoveSigtermProtection

CVEs

(none)

References

(none)