RHSA-2026:76814HighCVSS 7.5

Red Hat Security Advisory: OpenShift Container Platform 4.19 CNF IBU extras update

Published
October 6, 2026
Last Modified
October 6, 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 4.19
  • registry.redhat.io/openshift4/lifecycle-agent-operator-bundle@sha256:c611539b33821c5692de1b3b6f04149f49ebd61adc31209a1392d5cc3b9fa30d_amd64 as a component of Red Hat OpenShift Container Platform 4.19
  • registry.redhat.io/openshift4/lifecycle-agent-rhel9-operator@sha256:5e4c822b3cd61b7b147f7c0497ea96770ef715f45441e14e3b2e57a29cf334b7_amd64 as a component of Red Hat OpenShift Container Platform 4.19
  • registry.redhat.io/openshift4/recert-rhel9@sha256:ce3a411f1379bec672a5e7baba997e16973f8a75e7785313fb933ebf3bb97ef1_amd64 as a component of Red Hat OpenShift Container Platform 4.19

✅ Remediation

For OpenShift Container Platform 4.19, 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/4.19/html/release_notes/index Information about accessing this content is available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/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)