RHSA-2026:95754CriticalCVSS 9.8

Red Hat Security Advisory: OpenShift Container Platform 4.15.71 packages and security update

Published
November 11, 2026
Last Modified
November 13, 2026

🔗 CVE IDs covered (6)

CVE-2026-25681 →CVE-2026-33814 →CVE-2026-39821 →CVE-2026-92092 →CVE-2026-98432 →CVE-2026-111943 →

📋 Description

CVE-2026-25681 — golang.org/x/net/html: golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting 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-2026-92092 — openshift-ansible: openshift-ansible: Installer container downloads and executes remote inventory script without integrity verification CVE-2026-98432 — kernel: ipv4: free inet_opt and ireq_opt after an RCU grace period CVE-2026-111943 — crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates

🎯 Affected products194

  • Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-11.rhaos4.15.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-11.rhaos4.15.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-11.rhaos4.15.el8.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-11.rhaos4.15.el8.src as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-11.rhaos4.15.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-16.rhaos4.15.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-16.rhaos4.15.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-16.rhaos4.15.el9.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-16.rhaos4.15.el9.src as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-3:2.1.7-16.rhaos4.15.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-11.rhaos4.15.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-11.rhaos4.15.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-11.rhaos4.15.el8.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-11.rhaos4.15.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-16.rhaos4.15.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-16.rhaos4.15.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-16.rhaos4.15.el9.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debuginfo-3:2.1.7-16.rhaos4.15.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-11.rhaos4.15.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-11.rhaos4.15.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-11.rhaos4.15.el8.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-11.rhaos4.15.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-16.rhaos4.15.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-16.rhaos4.15.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-16.rhaos4.15.el9.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • conmon-debugsource-3:2.1.7-16.rhaos4.15.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.15
  • cri-o-0:1.28.11-18.rhaos4.15.git48e6ddb.el8.aarch64 as a component of Red Hat OpenShift Container Platform 4.15
  • cri-o-0:1.28.11-18.rhaos4.15.git48e6ddb.el8.ppc64le as a component of Red Hat OpenShift Container Platform 4.15
  • cri-o-0:1.28.11-18.rhaos4.15.git48e6ddb.el8.s390x as a component of Red Hat OpenShift Container Platform 4.15
  • +164 more not shown

✅ Remediation

For OpenShift Container Platform 4.15 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/4.15/html/release_notes/ Workaround: To mitigate this flaw, applications processing untrusted HTML input must implement strict input sanitization and ensure all output is properly encoded before rendering. Deploying a comprehensive Content Security Policy (CSP) can restrict script execution, further reducing the attack surface. Administrators should review application configurations to ensure adequate protection against XSS. 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: To mitigate this issue, ensure that the environment where the openshift-ansible installer container is executed is secured against network Man-in-the-Middle (MITM) attacks. When using the `INVENTORY_URL` or `DYNAMIC_SCRIPT_URL` environment variables, always provide URLs that use HTTPS to a trusted server and verify the server's certificate. If possible, avoid using remote inventory scripts and instead provide local inventory files to the installer. Workaround: See the security bulletin for a detailed mitigation procedure.

🔗 References (7)