RHSA-2026:73397HighCVSS 7.5

Red Hat Security Advisory: OpenShift Virtualization v4.21 Images

Published
September 29, 2026
Last Modified
September 29, 2026

🔗 CVE IDs covered (1)

CVE-2026-56862 →

📋 Description

CVE-2026-56862 — crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages

🎯 Affected products25

  • Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/bridge-marker-rhel9@sha256:53b0007c2468380938dcc197a31435d4fe62dcab83e9c6ec1ab603a030873d56_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/bridge-marker-rhel9@sha256:c6ed929b0fc7f32d746ec37459a23b7832990057cf62bf5f5470f5158a223cca_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/bridge-marker-rhel9@sha256:ddaea74df89b7979476692b56e0e4c2fd8ccc863230f7bcbdf4d07b96aeab0be_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/cluster-network-addons-operator-rhel9@sha256:2073ffa8c97086785894665797c8bc94d149f32f2e11e8af2719c9ee1c249622_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/cluster-network-addons-operator-rhel9@sha256:64863f8da910eb41953ab82d8864a5551e6ef3c8221a454daca4d155c65e7190_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/cluster-network-addons-operator-rhel9@sha256:87e757c9a01bdb7825f95eec2f1933183f5dc54c0d6a551565e7c25f2fee2ec9_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/cnv-containernetworking-plugins-rhel9@sha256:369d1c0a1e189cfaf6e9634f04b5be98655bf334d23c46f606d863e9a1c32bd6_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/cnv-containernetworking-plugins-rhel9@sha256:9389fb4ff3ddfc59846aa721c95a3cc15b27ce2c01e7c0a976188d16d909728c_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/cnv-containernetworking-plugins-rhel9@sha256:e0bb6fbc313f49639e6e32f07163c9f211e3f74059cef17dcab718a3cdb776af_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubemacpool-rhel9@sha256:982b9aec3faa646fcf18dbf521f1814fc909e584d15e865b3df3089aff8b1501_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubemacpool-rhel9@sha256:dbe9215a744d911a4d45c2e45d21b1e09d32ec809d729182f699f3cf39687587_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubemacpool-rhel9@sha256:fcf8be6ff73c2a3444ec5fa38ed142a5b36c89140f725d7aa94d2187990cb1e7_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubesecondarydns-rhel9@sha256:0b49b006b038aafaa3f6b4302a536d0666fc37be15612b47f1adf89b7ce75d39_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubesecondarydns-rhel9@sha256:3779fca62a49bb64a0f2b7a44c2292afac502c5fa4877df93ba22c82dd7d73a3_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubesecondarydns-rhel9@sha256:89e57dc6b47d591bce32a1e5c03e1ceaae0a0e25fb396953bf345fc7f4b5b9c7_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubevirt-ipam-controller-rhel9@sha256:03f0e9d3d02f63388bf2b2d3050ccd2826324c0db87f6720d6bc314323b3a136_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubevirt-ipam-controller-rhel9@sha256:186f872645cf1eb5ad2c39d31a28dbe675b665043707e942aba8389204d823ab_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/kubevirt-ipam-controller-rhel9@sha256:ada570ff23003ca636d7adf1ac8cadc8367a5e0a7537ea3799930baa13a4f601_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/multus-dynamic-networks-rhel9@sha256:2be26e35203e96c6fb6a9b4912cb7192c3463d031e5cba417d6850b2f68baa52_amd64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/multus-dynamic-networks-rhel9@sha256:a2ea25f053c44b00d2a426371f17f5e0155d47aa36aca6342684552a0510f81a_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/multus-dynamic-networks-rhel9@sha256:dfddff25f11324500c0c2c9e64dcce9a4b33da6a55cd9d325bc9546de1ccad94_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/ovs-cni-plugin-rhel9@sha256:3349d05b16d2a6010840027f70b02439364b3819563a4ba176ebb317843ed261_s390x as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/ovs-cni-plugin-rhel9@sha256:706ddd31a784fe56bc1589e1cd144cec3d0d0fb2d47d3a681efe0e2cf58e3a57_arm64 as a component of Red Hat Container Native Virtualization 4.21
  • registry.redhat.io/container-native-virtualization/ovs-cni-plugin-rhel9@sha256:e242125a4c3088ba055fe329943a0b2e244316200c30b50939a6ae3daef29495_amd64 as a component of Red Hat Container Native Virtualization 4.21

✅ Remediation

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

🔗 References (4)