- Issued:
- 2026-07-21
- Updated:
- 2026-07-21
RHBA-2026:40778 - Bug Fix Advisory
Synopsis
OpenShift Container Platform 4.21.25 packages update
Type/Severity
Bug Fix Advisory
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
Red Hat OpenShift Container Platform release 4.21.25 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 4.21.25. See the following advisory for the container images for this release:
https://access.redhat.com/errata/RHSA-2026:40792
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
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)
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat OpenShift Container Platform 4.21 for RHEL 9
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.src.rpm | SHA-256: 0589304567f18ed8e922883b634e3d6720428a0084a7f67d0effcc73e062dd1e |
| x86_64 | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.x86_64.rpm | SHA-256: e6a96de2314ebbe1e231e6c82db1a6d3de9b633e965494214db36bab74a2b5da |
| openshift-kube-apiserver-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.x86_64.rpm | SHA-256: 362ccb667869b51a409415741620a9d3852ec28608f90dbc3ffdd3b46ff174db |
| openshift-kube-controller-manager-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.x86_64.rpm | SHA-256: 6c11a0aa85890b50254454bc5e2101a244e03021634913a06c6e0d67dfbd7b1b |
| openshift-kube-scheduler-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.x86_64.rpm | SHA-256: 4b9a0d09f3dccdb47b5962c74f0849a5367f44cfdbb03bce0ffa0b7984a891bb |
| openshift-kubelet-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.x86_64.rpm | SHA-256: f1fff1e53b54c12e186ca3885493f6415912fec653ad6c143fa8faf3321e83a6 |
Red Hat OpenShift Container Platform 4.21 for RHEL 8
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.src.rpm | SHA-256: 13b4aff830d8075aba9c67ff70dcfc18afe7f0aaa587f245ff7a7231e238f45b |
| x86_64 | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.x86_64.rpm | SHA-256: 490b5ba3c07e27ecdcde95a23f37b5658061cacb04cd2f02f39d0d5c8eb05f85 |
Red Hat OpenShift Container Platform for Power 4.21 for RHEL 9
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.src.rpm | SHA-256: 0589304567f18ed8e922883b634e3d6720428a0084a7f67d0effcc73e062dd1e |
| ppc64le | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.ppc64le.rpm | SHA-256: ef5f228b4229d5b00f31c90dd00e330b64de6a797e06571dbacd8924578f913b |
| openshift-kube-apiserver-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.ppc64le.rpm | SHA-256: e7e2c41b9bdbf246b6724aeca34db74f77c9dc24d62896eb99acabe5a185bf07 |
| openshift-kube-controller-manager-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.ppc64le.rpm | SHA-256: c576ae8f5e81ee4f1c80423899ac286a4683f064573b12bfaa92223e595d85c6 |
| openshift-kube-scheduler-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.ppc64le.rpm | SHA-256: ad08bf9ce5357dc8466509e90e5fa7fb8e8bf2bf1da012cc83dad2f090c0ae1c |
| openshift-kubelet-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.ppc64le.rpm | SHA-256: 57c3bf9b260178efe79d1ad2df77d12b1deb52d1f9d499fc4d405323d61ce2cf |
Red Hat OpenShift Container Platform for Power 4.21 for RHEL 8
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.src.rpm | SHA-256: 13b4aff830d8075aba9c67ff70dcfc18afe7f0aaa587f245ff7a7231e238f45b |
| ppc64le | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.ppc64le.rpm | SHA-256: 11d4b68bb679001749c5c48c0a0485f5b113764b497e42082f69bc4565e6a457 |
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 9
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.src.rpm | SHA-256: 0589304567f18ed8e922883b634e3d6720428a0084a7f67d0effcc73e062dd1e |
| s390x | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.s390x.rpm | SHA-256: e6c8a4e5fe29878fb9fee91371dd784870c5ec9bfea1b4e7713b28a51b6f52f3 |
| openshift-kube-apiserver-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.s390x.rpm | SHA-256: d977d434fcfcb9466b6b81919c6365f3cf78ea3df046dfb2a2febedc4cb317ec |
| openshift-kube-controller-manager-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.s390x.rpm | SHA-256: c07cf971381bbd0e47e416730cc5132f5e1cedab5d514f951789bef7a1a0c43e |
| openshift-kube-scheduler-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.s390x.rpm | SHA-256: 7dbd872bfc857e99a204f28596a771bd5172bfb9d4c4108f9ec7540a1ea8d4bd |
| openshift-kubelet-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.s390x.rpm | SHA-256: bfc6819d92c6af0949dea2f5b36eb99bd951324d9fabae9c13ea13622b51a76b |
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 8
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.src.rpm | SHA-256: 13b4aff830d8075aba9c67ff70dcfc18afe7f0aaa587f245ff7a7231e238f45b |
| s390x | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.s390x.rpm | SHA-256: e44fff4e59bef32c9332ed09308d32940b562e857bef0b1bbc9f761a7399bbd0 |
Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 9
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.src.rpm | SHA-256: 0589304567f18ed8e922883b634e3d6720428a0084a7f67d0effcc73e062dd1e |
| aarch64 | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.aarch64.rpm | SHA-256: efc8c98910e3ede8e0dd1d768a65e240399d2223133d7b1cc4d67b8e12b6e734 |
| openshift-kube-apiserver-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.aarch64.rpm | SHA-256: 57639720946dd11f5269bb192a68a7da815d09eb0fbbb3b9bda58fb46f3725ec |
| openshift-kube-controller-manager-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.aarch64.rpm | SHA-256: de77cfbde150cb82d16a3025b55d05b9439599b0bbf8d9dcc2d14bbc86e3c532 |
| openshift-kube-scheduler-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.aarch64.rpm | SHA-256: 3e41e057b7094c6d3527abc234ee1bc58030281593626c62734005b2bc5d17eb |
| openshift-kubelet-4.21.0-202607090251.p2.gba6535c.assembly.stream.el9.aarch64.rpm | SHA-256: 76dd87bf2a516dd734b675071e1961595c2f5fbe489311342fac40ec6519bf16 |
Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 8
| SRPM | |
|---|---|
| openshift-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.src.rpm | SHA-256: 13b4aff830d8075aba9c67ff70dcfc18afe7f0aaa587f245ff7a7231e238f45b |
| aarch64 | |
| openshift-hyperkube-4.21.0-202607090251.p2.gba6535c.assembly.stream.el8.aarch64.rpm | SHA-256: 24c956cf64d0626570c5e5429a13419a8878dce3ff4c0c204f19cd0d81b689f5 |
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
