RHSA-2026:63091HighCVSS 7.5

Red Hat Security Advisory: OpenShift Container Platform 4.22.13 packages and security update

Published
September 8, 2026
Last Modified
September 17, 2026

🔗 CVE IDs covered (2)

CVE-2026-33814 →CVE-2026-42504 →

📋 Description

CVE-2026-33814 — net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame CVE-2026-42504 — mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header

🎯 Affected products200

  • Red Hat OpenShift Container Platform 4.22
  • kernel-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-0:5.14.0-687.44.1.el9_8.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-0:5.14.0-687.44.1.el9_8.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-0:5.14.0-687.44.1.el9_8.src as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-0:5.14.0-687.44.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-core-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-core-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-debuginfo-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-devel-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-devel-matched-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-modules-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-modules-core-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-modules-extra-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-modules-internal-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debug-modules-partner-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-debuginfo-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-devel-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-devel-matched-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-modules-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-modules-core-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-modules-extra-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-modules-internal-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-64k-modules-partner-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-abi-stablelists-0:5.14.0-687.44.1.el9_8.noarch as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-core-0:5.14.0-687.44.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-core-0:5.14.0-687.44.1.el9_8.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • kernel-core-0:5.14.0-687.44.1.el9_8.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • +170 more not shown

✅ Remediation

For OpenShift Container Platform 4.22 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/4.22/html/release_notes/ Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: To mitigate this issue, restrict network access to services that process MIME headers from untrusted sources. Implement input validation and sanitization for all incoming data, especially MIME headers, to prevent maliciously crafted content from being processed by applications utilizing the vulnerable Golang MIME package.

🔗 References (5)