Important: Red Hat Security Advisory: OpenShift Container Platform 4.22.3 security and extras update

Red Hat OpenShift Container Platform release 4.22.3 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.22. Red Hat Product Security has rated this update as having a security impact of...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.20.27 security and extras update

Red Hat OpenShift Container Platform release 4.20.27 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.20. Red Hat Product Security has rated this update as having a security impact of...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.12.92 packages and security update

Red Hat OpenShift Container Platform release 4.12.92 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.12. Red Hat Product Security has rated this update as having a...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.18.45 packages and security update

Red Hat OpenShift Container Platform release 4.18.45 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.18. Red Hat Product Security has rated this update as having a...

Important: Red Hat Security Advisory: OpenShift Virtualization v4.20 Images

Red Hat OpenShift Virtualization release v4.20 is now available with updates to packages and images that fix several bugs and add enhancements. OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift...

CVE-2026-54099

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A...

CVE-2026-54100 Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture...

PT-2026-51306

Name of the Vulnerable Software and Affected Versions Red Hat OpenShift Container Platform 4 affected versions not specified Description A flaw exists in the Windows Machine Config Operator WMCO where SSH connections to Windows worker nodes are established without verifying the remote server host...

RHCOS 4 : OpenShift Container Platform 4.16.64 (RHSA-2026:25043)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:25043 advisory. - net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 Note that Nessus has not tested for this issue but has instead...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.16.64 security and extras update

Red Hat OpenShift Container Platform release 4.16.64 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.16. Red Hat Product Security has rated this update as having a security impact of...

Critical: Red Hat Security Advisory: OpenShift Container Platform 4.20.25 bug fix and security update

Red Hat OpenShift Container Platform release 4.20.25 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.20. Red Hat Product Security has rated this update as having a...

Moderate: Red Hat Security Advisory: Red Hat build of Keycloak 26.6.3 Images Update

New images are available for Red Hat build of Keycloak 26.6.3 and Red Hat build of Keycloak 26.6.3 Operator, running on OpenShift Container Platform Red Hat build of Keycloak is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. The Red Hat...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.19.33 packages and security update

Red Hat OpenShift Container Platform release 4.19.33 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.19. Red Hat Product Security has rated this update as having a...

RHCOS 4 : OpenShift Container Platform 4.19.33 (RHSA-2026:23244)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:23244 advisory. - crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building CVE-2026-32280 Note that Nessus has not...

RHCOS 4 : OpenShift Container Platform 4.20.24 (RHSA-2026:21701)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:21701 advisory. - golang: archive/tar: Unbounded allocation when parsing GNU sparse map CVE-2025-58183 - kernel: Read root-owned files as an...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.21.18 security and extras update

Red Hat OpenShift Container Platform release 4.21.18 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.21. Red Hat Product Security has rated this update as having a security impact of...

Important: Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.17.0

Assisted installer RHEL 9 components for the multicluster engine for Kubernetes 2.17.0 General Availability release, with updates to container images. Assisted Installer RHEL 9 integrates components for the general multicluster engine for Kubernetes 2.17.0 release that simplify the process of...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.21.17 security and extras update

Red Hat OpenShift Container Platform release 4.21.17 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.21. Red Hat Product Security has rated this update as having a security impact of...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.17.54 security and extras update

Red Hat OpenShift Container Platform release 4.17.54 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.17. Red Hat Product Security has rated this update as having a security impact of...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.18.42 packages and security update

Red Hat OpenShift Container Platform release 4.18.42 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.18. Red Hat Product Security has rated this update as having a...