RHSA-2026:89837HighCVSS 8.2

Red Hat Security Advisory: OpenShift Container Platform 4.14.77 packages and security update

Published
October 27, 2026
Last Modified
November 3, 2026

🔗 CVE IDs covered (3)

CVE-2026-111943 →CVE-2026-33814 →CVE-2026-39821 →

📋 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-2026-39821 — golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing CVE-2026-111943 — crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates

🎯 Affected products200

  • Red Hat OpenShift Container Platform 4.14
  • bpftool-0:7.0.0-284.200.1.el9_2.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-0:7.0.0-284.200.1.el9_2.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-0:7.0.0-284.200.1.el9_2.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-0:7.0.0-284.200.1.el9_2.x86_64 as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-debuginfo-0:7.0.0-284.200.1.el9_2.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-debuginfo-0:7.0.0-284.200.1.el9_2.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-debuginfo-0:7.0.0-284.200.1.el9_2.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • bpftool-debuginfo-0:7.0.0-284.200.1.el9_2.x86_64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el8.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el8.src as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el9.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el9.src as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-3:2.1.7-7.rhaos4.14.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el8.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el9.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debuginfo-3:2.1.7-7.rhaos4.14.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debugsource-3:2.1.7-7.rhaos4.14.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debugsource-3:2.1.7-7.rhaos4.14.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.14
  • conmon-debugsource-3:2.1.7-7.rhaos4.14.el8.s390x as a component of Red Hat OpenShift Container Platform 4.14
  • +170 more not shown

✅ Remediation

For OpenShift Container Platform 4.14 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/4.14/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: Upgrade to a fixed golang.org/x/net release that includes the idna correction, via updated golang or dependent package rebuilds. Workaround: See the security bulletin for a detailed mitigation procedure.

🔗 References (6)