RHSA-2026:57361HighCVSS 7.8

Red Hat Security Advisory: OpenShift Container Platform 4.22.11 packages and security update

Published
August 25, 2026
Last Modified
August 25, 2026

🔗 CVE IDs covered (3)

CVE-2026-15809 →CVE-2026-39822 →CVE-2026-42504 →

📋 Description

CVE-2026-15809 — github.com/cri-o/cri-o: Fix Bypass for CVE-2022-4318 — /etc/passwd Injection via HOME env CVE-2026-39822 — golang: Go os.Root: Symlink following vulnerability allows directory traversal CVE-2026-42504 — mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header

🎯 Affected products114

  • Ironic content for Red Hat OpenShift Container Platform 4.22
  • Red Hat OpenShift Container Platform 4.22
  • cri-o-0:1.35.6-5.rhaos4.22.git41f610b.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-0:1.35.6-5.rhaos4.22.git41f610b.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-0:1.35.6-5.rhaos4.22.git41f610b.el9.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-0:1.35.6-5.rhaos4.22.git41f610b.el9.src as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-0:1.35.6-5.rhaos4.22.git41f610b.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debuginfo-0:1.35.6-5.rhaos4.22.git41f610b.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debuginfo-0:1.35.6-5.rhaos4.22.git41f610b.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debuginfo-0:1.35.6-5.rhaos4.22.git41f610b.el9.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debuginfo-0:1.35.6-5.rhaos4.22.git41f610b.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debugsource-0:1.35.6-5.rhaos4.22.git41f610b.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debugsource-0:1.35.6-5.rhaos4.22.git41f610b.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debugsource-0:1.35.6-5.rhaos4.22.git41f610b.el9.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • cri-o-debugsource-0:1.35.6-5.rhaos4.22.git41f610b.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-0:1.35.0-3.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-0:1.35.0-3.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-0:1.35.0-3.el9.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-0:1.35.0-3.el9.src as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-0:1.35.0-3.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debuginfo-0:1.35.0-3.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debuginfo-0:1.35.0-3.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debuginfo-0:1.35.0-3.el9.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debuginfo-0:1.35.0-3.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debugsource-0:1.35.0-3.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debugsource-0:1.35.0-3.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debugsource-0:1.35.0-3.el9.s390x as a component of Red Hat OpenShift Container Platform 4.22
  • cri-tools-debugsource-0:1.35.0-3.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22
  • kata-containers-0:3.31.0-5.rhaos4.22.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.22
  • kata-containers-0:3.31.0-5.rhaos4.22.el9.ppc64le as a component of Red Hat OpenShift Container Platform 4.22
  • +84 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: Restrict access to users who can create or modify container workloads through appropriate RBAC permissions, apply security controls such as Security Context Constraints (SCCs) to limit privilege escalation, and enforce policies to run containers with reduced privileges (for example, as non-root) to reduce the impact of potential exploitation. Enable SELinux on affected nodes and consider admission controls to prevent potentially unsafe workload configurations. Workaround: There is no mitigation for this issue other than updating the Go toolchain to Go 1.25.12 or Go 1.26.5. Programs compiled with Go >= 1.24 that do not use the os.Root API are not affected by this vulnerability. The os.Root API was introduced in Go 1.24. Go versions prior to 1.24 are not affected. This issue is fixed in Go 1.25.12 and Go 1.26.5. 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 (6)