RHSA-2026:51288HighCVSS 8.8

Red Hat Security Advisory: container-tools:rhel8 security update

Published
August 6, 2026
Last Modified
August 20, 2026

🔗 CVE IDs covered (10)

CVE-2025-61726 →CVE-2025-61728 →CVE-2025-61729 →CVE-2026-32280 →CVE-2026-32283 →CVE-2025-68121 →CVE-2026-25679 →CVE-2026-32281 →CVE-2026-33810 →CVE-2026-42508 →

📋 Description

CVE-2025-61726 — golang: net/url: Memory exhaustion in query parameter parsing in net/url CVE-2025-61728 — golang: archive/zip: Excessive CPU consumption when building archive index in archive/zip CVE-2025-61729 — crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate CVE-2025-68121 — crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption CVE-2026-25679 — net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-32280 — crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building CVE-2026-32281 — crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation CVE-2026-32283 — crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages CVE-2026-33810 — crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application CVE-2026-42508 — golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey

🎯 Affected products170

  • Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • aardvark-dns-2:1.0.1-40.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • aardvark-dns-2:1.0.1-40.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.src (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.src (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • buildah-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • buildah-debuginfo-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • buildah-debuginfo-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • buildah-debugsource-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • buildah-debugsource-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • buildah-tests-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • buildah-tests-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • buildah-tests-debuginfo-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • buildah-tests-debuginfo-1:1.26.11-1.module+el8.6.0+24590+db5ff31b.3.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • cockpit-podman-0:49.1-1.module+el8.6.0+24209+25a14987.noarch (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • cockpit-podman-0:49.1-1.module+el8.6.0+24209+25a14987.noarch (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • cockpit-podman-0:49.1-1.module+el8.6.0+24209+25a14987.src (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • cockpit-podman-0:49.1-1.module+el8.6.0+24209+25a14987.src (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • conmon-2:2.1.4-1.module+el8.6.0+24209+25a14987.src (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • conmon-2:2.1.4-1.module+el8.6.0+24209+25a14987.src (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • conmon-2:2.1.4-1.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • conmon-2:2.1.4-1.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • conmon-debuginfo-2:2.1.4-1.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • conmon-debuginfo-2:2.1.4-1.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • conmon-debugsource-2:2.1.4-1.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • conmon-debugsource-2:2.1.4-1.module+el8.6.0+24209+25a14987.x86_64 (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • container-selinux-2:2.189.0-1.module+el8.6.0+24209+25a14987.noarch (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • container-selinux-2:2.189.0-1.module+el8.6.0+24209+25a14987.noarch (container-tools:rhel8) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • +140 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible. Workaround: To mitigate this vulnerability, implement a timeout in your archive/zip processing logic to abort the operation if it exceeds a few seconds, preventing the application from consuming an excessive amount of resources. 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 (12)