RHSA-2026:27076HighCVSS 9.1

Red Hat Security Advisory: Satellite 6.16.9 Async Update

Published
June 18, 2026
Last Modified
July 27, 2026

🔗 CVE IDs covered (8)

CVE-2026-32283 →CVE-2026-33186 →CVE-2026-40192 →CVE-2025-61729 →CVE-2026-25679 →CVE-2026-32280 →CVE-2026-32281 →CVE-2026-32282 →

📋 Description

CVE-2025-61729 — crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate 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-2026-32282 — golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root CVE-2026-32283 — crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages CVE-2026-33186 — google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation CVE-2026-40192 — Pillow: Pillow: Denial of Service via decompression bomb in FITS image processing

🎯 Affected products48

  • Red Hat Satellite 6.16 for RHEL 8
  • Red Hat Satellite 6.16 for RHEL 9
  • dynflow-utils-0:1.6.3-1.1.el8sat.src as a component of Red Hat Satellite 6.16 for RHEL 8
  • dynflow-utils-0:1.6.3-1.1.el8sat.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 8
  • dynflow-utils-0:1.6.3-1.1.el9sat.src as a component of Red Hat Satellite 6.16 for RHEL 9
  • dynflow-utils-0:1.6.3-1.1.el9sat.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 9
  • python-pillow-0:12.2.0-1.el8pc.src as a component of Red Hat Satellite 6.16 for RHEL 8
  • python-pillow-0:12.2.0-1.el9pc.src as a component of Red Hat Satellite 6.16 for RHEL 9
  • python-pillow-debugsource-0:12.2.0-1.el8pc.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 8
  • python-pillow-debugsource-0:12.2.0-1.el9pc.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 9
  • python-pulp-ansible-1:0.21.10-4.el8pc.src as a component of Red Hat Satellite 6.16 for RHEL 8
  • python-pulp-ansible-1:0.21.10-4.el9pc.src as a component of Red Hat Satellite 6.16 for RHEL 9
  • python-pulp-rpm-0:3.26.8-1.el8pc.src as a component of Red Hat Satellite 6.16 for RHEL 8
  • python-pulp-rpm-0:3.26.8-1.el9pc.src as a component of Red Hat Satellite 6.16 for RHEL 9
  • python3.11-pillow-0:12.2.0-1.el8pc.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 8
  • python3.11-pillow-0:12.2.0-1.el9pc.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 9
  • python3.11-pillow-debuginfo-0:12.2.0-1.el8pc.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 8
  • python3.11-pillow-debuginfo-0:12.2.0-1.el9pc.x86_64 as a component of Red Hat Satellite 6.16 for RHEL 9
  • python3.11-pulp-ansible-1:0.21.10-4.el8pc.noarch as a component of Red Hat Satellite 6.16 for RHEL 8
  • python3.11-pulp-ansible-1:0.21.10-4.el9pc.noarch as a component of Red Hat Satellite 6.16 for RHEL 9
  • python3.11-pulp-rpm-0:3.26.8-1.el8pc.noarch as a component of Red Hat Satellite 6.16 for RHEL 8
  • python3.11-pulp-rpm-0:3.26.8-1.el9pc.noarch as a component of Red Hat Satellite 6.16 for RHEL 9
  • rubygem-foreman_maintain-1:1.7.14-1.el8sat.noarch as a component of Red Hat Satellite 6.16 for RHEL 8
  • rubygem-foreman_maintain-1:1.7.14-1.el8sat.src as a component of Red Hat Satellite 6.16 for RHEL 8
  • rubygem-foreman_maintain-1:1.7.14-1.el9sat.noarch as a component of Red Hat Satellite 6.16 for RHEL 9
  • rubygem-foreman_maintain-1:1.7.14-1.el9sat.src as a component of Red Hat Satellite 6.16 for RHEL 9
  • rubygem-katello-0:4.14.0.20-1.el8sat.noarch as a component of Red Hat Satellite 6.16 for RHEL 8
  • rubygem-katello-0:4.14.0.20-1.el8sat.src as a component of Red Hat Satellite 6.16 for RHEL 8
  • rubygem-katello-0:4.14.0.20-1.el9sat.noarch as a component of Red Hat Satellite 6.16 for RHEL 9
  • rubygem-katello-0:4.14.0.20-1.el9sat.src as a component of Red Hat Satellite 6.16 for RHEL 9
  • +18 more not shown

✅ Remediation

Before applying this update, make sure all previously released errata relevant to your system have been applied. For detailed instructions how to apply this update, refer to: https://docs.redhat.com/en/documentation/red_hat_satellite/6.16/html/updating_red_hat_satellite/index 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: To mitigate this issue, implement infrastructure-level normalization to ensure all incoming HTTP/2 `:path` headers are properly formatted with a leading slash before reaching the gRPC-Go server. This can be achieved by configuring a reverse proxy or API gateway to validate and normalize the `:path` header. Ensure that any such intermediary is properly configured and restarted to apply the changes, which may temporarily impact service availability.

🔗 References (13)