RHSA-2026:2760HighCVSS 7.5

Red Hat Security Advisory: Satellite 6.18.3 Async Update

Published
February 16, 2026
Last Modified
September 15, 2026

🔗 CVE IDs covered (3)

CVE-2025-53643 →CVE-2025-66471 →CVE-2026-21441 →

📋 Description

CVE-2025-53643 — aiohttp: AIOHTTP HTTP Request/Response Smuggling CVE-2025-66471 — urllib3: urllib3 Streaming API improperly handles highly compressed data CVE-2026-21441 — urllib3: urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)

🎯 Affected products51

  • Red Hat Satellite 6.18 for RHEL 9
  • foreman-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-0:3.16.0.10-1.el9sat.src as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-cli-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-debug-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-dynflow-sidekiq-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-ec2-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-installer-1:3.16.0.4-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-installer-1:3.16.0.4-1.el9sat.src as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-installer-katello-1:3.16.0.4-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-journald-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-libvirt-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-openstack-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-pcp-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-postgresql-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-redis-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-service-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-telemetry-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • foreman-vmware-0:3.16.0.10-1.el9sat.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-aiohappyeyeballs-0:2.6.1-1.el9pc.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-aiohappyeyeballs-0:2.6.1-1.el9pc.src as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-aiohttp-0:3.13.3-1.el9pc.src as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-aiohttp-0:3.13.3-1.el9pc.x86_64 as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-aiohttp-debuginfo-0:3.13.3-1.el9pc.x86_64 as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-aiohttp-debugsource-0:3.13.3-1.el9pc.x86_64 as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-brotli-0:1.2.0-1.el9pc.src as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-brotli-0:1.2.0-1.el9pc.x86_64 as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-brotli-debuginfo-0:1.2.0-1.el9pc.x86_64 as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-brotli-debugsource-0:1.2.0-1.el9pc.x86_64 as a component of Red Hat Satellite 6.18 for RHEL 9
  • python3.12-pulpcore-0:3.73.22-2.el9pc.noarch as a component of Red Hat Satellite 6.18 for RHEL 9
  • +21 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://access.redhat.com/documentation/en-us/red_hat_satellite/6.18/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.

🔗 References (17)