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Red Hat Product Errata RHSA-2026:73397 - Security Advisory
Issued:
2026-09-29
Updated:
2026-09-29

RHSA-2026:73397 - Security Advisory

  • Overview
  • Updated Images

Synopsis

OpenShift Virtualization v4.21 Images

Type/Severity

Security Advisory: Important

Topic

Red Hat OpenShift Virtualization release v4.21 is now available with updates to packages and images that fix several bugs and add enhancements.

Description

OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform.

This advisory contains OpenShift Virtualization v4.21 images.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Container Native Virtualization

Fixes

(none)

CVEs

  • CVE-2026-56862

References

  • https://access.redhat.com/security/updates/classification/

amd64

registry.redhat.io/container-native-virtualization/bridge-marker-rhel9@sha256:53b0007c2468380938dcc197a31435d4fe62dcab83e9c6ec1ab603a030873d56
registry.redhat.io/container-native-virtualization/cluster-network-addons-operator-rhel9@sha256:87e757c9a01bdb7825f95eec2f1933183f5dc54c0d6a551565e7c25f2fee2ec9
registry.redhat.io/container-native-virtualization/cnv-containernetworking-plugins-rhel9@sha256:9389fb4ff3ddfc59846aa721c95a3cc15b27ce2c01e7c0a976188d16d909728c
registry.redhat.io/container-native-virtualization/kubemacpool-rhel9@sha256:dbe9215a744d911a4d45c2e45d21b1e09d32ec809d729182f699f3cf39687587
registry.redhat.io/container-native-virtualization/kubesecondarydns-rhel9@sha256:0b49b006b038aafaa3f6b4302a536d0666fc37be15612b47f1adf89b7ce75d39
registry.redhat.io/container-native-virtualization/kubevirt-ipam-controller-rhel9@sha256:186f872645cf1eb5ad2c39d31a28dbe675b665043707e942aba8389204d823ab
registry.redhat.io/container-native-virtualization/multus-dynamic-networks-rhel9@sha256:2be26e35203e96c6fb6a9b4912cb7192c3463d031e5cba417d6850b2f68baa52
registry.redhat.io/container-native-virtualization/ovs-cni-plugin-rhel9@sha256:e242125a4c3088ba055fe329943a0b2e244316200c30b50939a6ae3daef29495

arm64

registry.redhat.io/container-native-virtualization/bridge-marker-rhel9@sha256:ddaea74df89b7979476692b56e0e4c2fd8ccc863230f7bcbdf4d07b96aeab0be
registry.redhat.io/container-native-virtualization/cluster-network-addons-operator-rhel9@sha256:64863f8da910eb41953ab82d8864a5551e6ef3c8221a454daca4d155c65e7190
registry.redhat.io/container-native-virtualization/cnv-containernetworking-plugins-rhel9@sha256:e0bb6fbc313f49639e6e32f07163c9f211e3f74059cef17dcab718a3cdb776af
registry.redhat.io/container-native-virtualization/kubemacpool-rhel9@sha256:fcf8be6ff73c2a3444ec5fa38ed142a5b36c89140f725d7aa94d2187990cb1e7
registry.redhat.io/container-native-virtualization/kubesecondarydns-rhel9@sha256:89e57dc6b47d591bce32a1e5c03e1ceaae0a0e25fb396953bf345fc7f4b5b9c7
registry.redhat.io/container-native-virtualization/kubevirt-ipam-controller-rhel9@sha256:03f0e9d3d02f63388bf2b2d3050ccd2826324c0db87f6720d6bc314323b3a136
registry.redhat.io/container-native-virtualization/multus-dynamic-networks-rhel9@sha256:a2ea25f053c44b00d2a426371f17f5e0155d47aa36aca6342684552a0510f81a
registry.redhat.io/container-native-virtualization/ovs-cni-plugin-rhel9@sha256:706ddd31a784fe56bc1589e1cd144cec3d0d0fb2d47d3a681efe0e2cf58e3a57

s390x

registry.redhat.io/container-native-virtualization/bridge-marker-rhel9@sha256:c6ed929b0fc7f32d746ec37459a23b7832990057cf62bf5f5470f5158a223cca
registry.redhat.io/container-native-virtualization/cluster-network-addons-operator-rhel9@sha256:2073ffa8c97086785894665797c8bc94d149f32f2e11e8af2719c9ee1c249622
registry.redhat.io/container-native-virtualization/cnv-containernetworking-plugins-rhel9@sha256:369d1c0a1e189cfaf6e9634f04b5be98655bf334d23c46f606d863e9a1c32bd6
registry.redhat.io/container-native-virtualization/kubemacpool-rhel9@sha256:982b9aec3faa646fcf18dbf521f1814fc909e584d15e865b3df3089aff8b1501
registry.redhat.io/container-native-virtualization/kubesecondarydns-rhel9@sha256:3779fca62a49bb64a0f2b7a44c2292afac502c5fa4877df93ba22c82dd7d73a3
registry.redhat.io/container-native-virtualization/kubevirt-ipam-controller-rhel9@sha256:ada570ff23003ca636d7adf1ac8cadc8367a5e0a7537ea3799930baa13a4f601
registry.redhat.io/container-native-virtualization/multus-dynamic-networks-rhel9@sha256:dfddff25f11324500c0c2c9e64dcce9a4b33da6a55cd9d325bc9546de1ccad94
registry.redhat.io/container-native-virtualization/ovs-cni-plugin-rhel9@sha256:3349d05b16d2a6010840027f70b02439364b3819563a4ba176ebb317843ed261

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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