RHSA-2026:43226: Important: OpenShift Container Platform 4.15.67 bug fix and security update

Published Jul 30, 2026
·
Updated

Important: OpenShift Container Platform 4.15.67 bug fix and security update

Other sources

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 container images for Red Hat OpenShift Container Platform 4.15.67. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:43225 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:https://docs.redhat.com/en/documentation/openshiftcontainerplatform/4.15/html/releasenotes/ Security Fix(es): bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone (CVE-2026-1519) glibc: glibc: Heap Buffer Overflow in scanf with %mc format specifier and large width (CVE-2026-5450) openssl: openssl: Information Disclosure from Uninitialized Memory via Invalid RSA Public Key (CVE-2026-31790) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.15 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 CLI (oc) or web console. Instructions for upgrading a cluster are available athttps://docs.redhat.com/en/documentation/openshiftcontainerplatform/4.15/html-single/updatingclusters/index#updating-cluster-cli.

Red Hat

Affected Software

4 affected components
Red Hat Red Hat OpenShift Container Platform
Red Hat Red Hat OpenShift Container Platform for Power
Red Hat Red Hat OpenShift Container Platform for IBM Z and LinuxONE
Red Hat Red Hat OpenShift Container Platform for ARM 64

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade OpenShift Container Platform 4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.67Patch RHSA-2026:43225
  2. Compensating control

    Upgrade OpenShift Container Platform 4.15 to the updated packages and images in the appropriate release channel to address the listed security fixes for bind (CVE-2026-1519), glibc (CVE-2026-5450), and openssl (CVE-2026-31790).

  3. Operational

    When upgrading, fully apply the asynchronous errata update and use the provided upgrade procedures for OCP 4.15 (per the OpenShift Container Platform 4.15 updating clusters documentation), ensuring the cluster is fully updated to incorporate the updated packages/images for OCP 4.15.67.

Event History

Jul 30, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·09:34 AM
Data Sourced
via Red Hat·09:34 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:43226?

The severity of RHSA-2026:43226 is high, with a CVSS score of 7.

2

How do I fix RHSA-2026:43226?

To fix RHSA-2026:43226, update your OpenShift Container Platform to the latest version 4.15.67.

3

What is the risk associated with RHSA-2026:43226?

RHSA-2026:43226 has a risk rating of 33, indicating a significant impact on systems if left unaddressed.

4

What type of vulnerability is addressed in RHSA-2026:43226?

RHSA-2026:43226 addresses a buffer overflow vulnerability in the OpenShift Container Platform.

5

When was RHSA-2026:43226 published?

RHSA-2026:43226 was published on July 30, 2026.

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