Red Hat Product Errata RHBA-2026:25185 - Bug Fix Advisory
Issued:
2026-06-16
Updated:
2026-06-16

RHBA-2026:25185 - Bug Fix Advisory

Synopsis

OpenShift Container Platform 4.21.20 packages update

Type/Severity

Bug Fix Advisory

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Red Hat OpenShift Container Platform release 4.21.20 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 RPM packages for Red Hat OpenShift Container Platform 4.21.20. See the following advisory for the container images for this release:

https://access.redhat.com/errata/RHSA-2026:25187

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 Console or the CLI oc command. 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.

Solution

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/

Details on how to access this content are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.21/html-single/updating_clusters/index#updating-cluster-cli.

Affected Products

  • Red Hat OpenShift Container Platform 4.21 for RHEL 9 x86_64
  • Red Hat OpenShift Container Platform 4.21 for RHEL 8 x86_64
  • Red Hat OpenShift Container Platform for Power 4.21 for RHEL 9 ppc64le
  • Red Hat OpenShift Container Platform for Power 4.21 for RHEL 8 ppc64le
  • Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 9 s390x
  • Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 8 s390x
  • Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 9 aarch64
  • Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 8 aarch64

Fixes

(none)

CVEs

(none)

References

(none)

Red Hat OpenShift Container Platform 4.21 for RHEL 9

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.src.rpm SHA-256: 8e65a36743bfa8c39b79f1baa013263e78b28a1b634c862c1ed10e4d95b92234
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.src.rpm SHA-256: de4d4d9609c1db7ebf7f6768c9aecf7c1024c0623e45b1a1b57be5e022686690
x86_64
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.x86_64.rpm SHA-256: bff55acb4b5d2ce051ad40554b9638b7f10e38df7bed24d1ea52cc95fe7de4f4
openshift-kube-apiserver-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.x86_64.rpm SHA-256: b6aeeaba415fcfbfe39f2fc09014165a48abe9e52a14d3044ebcdc9c2cdfcd79
openshift-kube-controller-manager-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.x86_64.rpm SHA-256: 02d82957d6e044c24fd7346428177ece3c52f8aa38ff18fa48fbab6b305aa4f3
openshift-kube-scheduler-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.x86_64.rpm SHA-256: 4fd3ed40da1b6ebd08413d00e3f191a01c767acb84973e14bc54155b34b6a640
openshift-kubelet-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.x86_64.rpm SHA-256: 0714ffaaea0b2ccc418d559031b25a87cd46b005be0a344307fd015b7b5385cc
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.x86_64.rpm SHA-256: 6e50da9d86d94354fb6c04a7a57771d419fdac9bed97c70c0bd8489750303413

Red Hat OpenShift Container Platform 4.21 for RHEL 8

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.src.rpm SHA-256: 43bf2de81dc3be697309a53a100db333209a7c9dd1227547b79515c4404fcaf7
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.src.rpm SHA-256: 3ac960e12e030d1a3fc763cf9ba8ba3c9cf648c48a9e31dcf6bf9c07c9f884fa
x86_64
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.x86_64.rpm SHA-256: d5a6ab45f1c42625b6bdcb5588c84f398eae4154aed8716bd9025e59817fcdf4
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.x86_64.rpm SHA-256: 25c5712a8580965c1f9f80e4e3d504b6c7d84fe1a51c62afdd87cea257107b95

Red Hat OpenShift Container Platform for Power 4.21 for RHEL 9

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.src.rpm SHA-256: 8e65a36743bfa8c39b79f1baa013263e78b28a1b634c862c1ed10e4d95b92234
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.src.rpm SHA-256: de4d4d9609c1db7ebf7f6768c9aecf7c1024c0623e45b1a1b57be5e022686690
ppc64le
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.ppc64le.rpm SHA-256: 47a1e6feba63cd343517b2f6e1c57c66b66599f27fe865fc9b54c3b7115d5536
openshift-kube-apiserver-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.ppc64le.rpm SHA-256: 694eeb86b14760d718ac9c67575cc7b33d81137be9e020a88e31c9c5351ed7e4
openshift-kube-controller-manager-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.ppc64le.rpm SHA-256: 10930788493f01dfd8cacc91b400b6c95f9602fb09671cd57e799f5aec2c3b36
openshift-kube-scheduler-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.ppc64le.rpm SHA-256: 0a9844ea71e4effd7e96806a3f1a35574dc3a83e23d5a39c82bba4762139816d
openshift-kubelet-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.ppc64le.rpm SHA-256: 897baca30f6601d97e1cfe0cd5203e981ae0bc8c6f258fbf3663f27dd225b39b
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.ppc64le.rpm SHA-256: e9ea129643aa64d47ab9b2f63805bd8ae76149425c47a63df8d427cd31d2c0ce

Red Hat OpenShift Container Platform for Power 4.21 for RHEL 8

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.src.rpm SHA-256: 43bf2de81dc3be697309a53a100db333209a7c9dd1227547b79515c4404fcaf7
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.src.rpm SHA-256: 3ac960e12e030d1a3fc763cf9ba8ba3c9cf648c48a9e31dcf6bf9c07c9f884fa
ppc64le
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.ppc64le.rpm SHA-256: 118f28046f482f65ccfd108f96a16298a26ad3b98e08d7594e02857d9e918025
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.ppc64le.rpm SHA-256: dce8d6ced8075a428e4e43479e894b941169f2f8fed8e85959aaf65b40406cbb

Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 9

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.src.rpm SHA-256: 8e65a36743bfa8c39b79f1baa013263e78b28a1b634c862c1ed10e4d95b92234
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.src.rpm SHA-256: de4d4d9609c1db7ebf7f6768c9aecf7c1024c0623e45b1a1b57be5e022686690
s390x
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.s390x.rpm SHA-256: edf3e2aa3d2a83b3b99517c61d9d0b5f2a6b3c02d9b411845ff62e0aedda3db2
openshift-kube-apiserver-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.s390x.rpm SHA-256: f1988a1766076ee247fb9317597df2ab7c008f30f5c5eb93ee5fd9347e4975a3
openshift-kube-controller-manager-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.s390x.rpm SHA-256: 4456d2b6a284212ff63ad04ff0801b6d70d2e9a67795f712862c84a6f7812b3f
openshift-kube-scheduler-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.s390x.rpm SHA-256: b21b28d004441b646da75e79649ecf72c76aa253a6a48f3113c1e03815c7c232
openshift-kubelet-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.s390x.rpm SHA-256: 1bebb52f59b6142cae7b472542f18bbdea75ab190eeb0108b17e9f9227c7bd7d
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.s390x.rpm SHA-256: 336e6d4849fa8c1ccb7bb55a10a78be344324ed5150da30634eca67aac15c9b8

Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 8

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.src.rpm SHA-256: 43bf2de81dc3be697309a53a100db333209a7c9dd1227547b79515c4404fcaf7
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.src.rpm SHA-256: 3ac960e12e030d1a3fc763cf9ba8ba3c9cf648c48a9e31dcf6bf9c07c9f884fa
s390x
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.s390x.rpm SHA-256: 3f8e66b48093a4a643960eef80bb85bcaeba8c3269dc96250fc8e7c09ff68d29
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.s390x.rpm SHA-256: 32b0ce04217be477caff8a77013b6c91b9eb3318e1829c6cd88329d3ee749af5

Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 9

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.src.rpm SHA-256: 8e65a36743bfa8c39b79f1baa013263e78b28a1b634c862c1ed10e4d95b92234
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.src.rpm SHA-256: de4d4d9609c1db7ebf7f6768c9aecf7c1024c0623e45b1a1b57be5e022686690
aarch64
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.aarch64.rpm SHA-256: 2a4c4a57a36690c04c2f401e6d71c170741df2d833a81510dc95915000ecbf4c
openshift-kube-apiserver-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.aarch64.rpm SHA-256: 82328ce150bd08ddd28cf04e9f8c06fccf764aeeb61db5fd0141dc00c45273bd
openshift-kube-controller-manager-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.aarch64.rpm SHA-256: 90ec721917226f3cb8d9eb358beb1ac068f46a6ea5be55a741db8199a5f56123
openshift-kube-scheduler-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.aarch64.rpm SHA-256: bd222e05ad1ff7197b1b3c8b80dc66b7d430ab17ba412c05f1d0ba05720293b6
openshift-kubelet-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el9.aarch64.rpm SHA-256: 50e5b83ade1aef0396084510c7c4a48240a3a12bbb77a4ba437599b3fa23a640
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el9.aarch64.rpm SHA-256: e294d4c7840900ab421fffc6e5170e9c090e71eb7f2ef734bf6e55f02c94dc4a

Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 8

SRPM
openshift-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.src.rpm SHA-256: 43bf2de81dc3be697309a53a100db333209a7c9dd1227547b79515c4404fcaf7
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.src.rpm SHA-256: 3ac960e12e030d1a3fc763cf9ba8ba3c9cf648c48a9e31dcf6bf9c07c9f884fa
aarch64
openshift-hyperkube-4.21.0-202606042250.p2.ga8c502a.assembly.stream.el8.aarch64.rpm SHA-256: 7950d1bb0cc47fa6177282bd5f57024280883112577791c7a2b60683289c517c
ose-azure-acr-image-credential-provider-4.21.0-202606092150.p2.gc9afac2.assembly.stream.el8.aarch64.rpm SHA-256: bba6398a287bea64bc740e6c8bec37b3910184162aa4ac941286de8cbdeae25c

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