RHSA-2026:99599HighCVSS 7.5

Red Hat Security Advisory: cockpit security update

Published
November 12, 2026
Last Modified
November 12, 2026

🔗 CVE IDs covered (2)

CVE-2026-91150 →CVE-2026-91151 →

📋 Description

CVE-2026-91150 — cockpit: cockpit: Denial of Service via unbounded fragmented WebSocket messages CVE-2026-91151 — cockpit: Cockpit: Local privilege escalation via insecure symlink handling in public key addition helper

🎯 Affected products28

  • Red Hat Enterprise Linux AppStream EUS (v.10.2)
  • Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-0:356.4.1-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-0:356.4.1-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-0:356.4.1-1.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-0:356.4.1-1.el10_2.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-0:356.4.1-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-bridge-0:356.4.1-1.el10_2.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debuginfo-0:356.4.1-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debuginfo-0:356.4.1-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debuginfo-0:356.4.1-1.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debuginfo-0:356.4.1-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debugsource-0:356.4.1-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debugsource-0:356.4.1-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debugsource-0:356.4.1-1.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-debugsource-0:356.4.1-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-doc-0:356.4.1-1.el10_2.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-packagekit-0:356.4.1-1.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v.10.2)
  • cockpit-storaged-0:356.4.1-1.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v.10.2)
  • cockpit-system-0:356.4.1-1.el10_2.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-0:356.4.1-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-0:356.4.1-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-0:356.4.1-1.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-0:356.4.1-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-selinux-0:356.4.1-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-selinux-0:356.4.1-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-selinux-0:356.4.1-1.el10_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)
  • cockpit-ws-selinux-0:356.4.1-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.10.2)

✅ 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

🔗 References (5)