RHSA-2026:91640HighCVSS 7.5

Red Hat Security Advisory: OpenShift Container Platform 4.16 CNF IBU extras update

Published
October 28, 2026
Last Modified
October 30, 2026

🔗 CVE IDs covered (2)

CVE-2026-33814 →CVE-2026-39829 →

📋 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-2026-39829 — golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters

🎯 Affected products4

  • Red Hat OpenShift Container Platform 4.16
  • registry.redhat.io/openshift4/lifecycle-agent-operator-bundle@sha256:c859f94381e24ca9521b776b88324249569c3f764dfdd30c832fd8fe7927e18a_amd64 as a component of Red Hat OpenShift Container Platform 4.16
  • registry.redhat.io/openshift4/lifecycle-agent-rhel9-operator@sha256:17567a5812bfab4715eb78480f1864c253cfe78d64681f2cb7ff4bf905f87ce8_amd64 as a component of Red Hat OpenShift Container Platform 4.16
  • registry.redhat.io/openshift4/recert-rhel9@sha256:0f0450e8066b3c9852385625befb8a98dbd008950675bb86368a8c588f397bb7_amd64 as a component of Red Hat OpenShift Container Platform 4.16

✅ Remediation

For OpenShift Container Platform 4.16, see the following documentation for important instructions about upgrading your cluster and applying this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/release_notes/index Information about accessing this content is available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html-single/updating_clusters/index#updating-cluster-cli 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.

🔗 References (5)