RHSA-2026:54243HighCVSS 7.5

Red Hat Security Advisory: grafana security update

Published
August 12, 2026
Last Modified
September 21, 2026

🔗 CVE IDs covered (2)

CVE-2026-33377 →CVE-2026-42127 →

📋 Description

CVE-2026-33377 — grafana: Grafana: Privilege escalation via dashboard overwrite CVE-2026-42127 — grafana: Grafana: Denial of Service due to excessive memory allocation via large JSON payloads

🎯 Affected products18

  • Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-0:9.2.10-32.el8_10.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-0:9.2.10-32.el8_10.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-0:9.2.10-32.el8_10.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-0:9.2.10-32.el8_10.1.src as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-0:9.2.10-32.el8_10.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debuginfo-0:9.2.10-32.el8_10.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debuginfo-0:9.2.10-32.el8_10.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debuginfo-0:9.2.10-32.el8_10.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debuginfo-0:9.2.10-32.el8_10.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debugsource-0:9.2.10-32.el8_10.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debugsource-0:9.2.10-32.el8_10.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debugsource-0:9.2.10-32.el8_10.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-debugsource-0:9.2.10-32.el8_10.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-selinux-0:9.2.10-32.el8_10.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-selinux-0:9.2.10-32.el8_10.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-selinux-0:9.2.10-32.el8_10.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • grafana-selinux-0:9.2.10-32.el8_10.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)

✅ 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: Audit dashboard-level permissions to ensure that write access is granted only to users who should be able to modify each specific dashboard. Revoke per-dashboard write permissions from Editor users who do not strictly require them. Workaround: Restrict network access to the Grafana instance to only trusted clients and networks. This can be achieved by configuring firewall rules to limit inbound connections to the Grafana service port. If Grafana is exposed via a reverse proxy, ensure the proxy is configured to limit request body sizes to prevent large payloads from reaching Grafana. A service restart may be required for network configuration changes to take effect.

🔗 References (5)