RHSA-2026:84422MediumCVSS 6.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Published
October 17, 2026
Last Modified
October 30, 2026

🔗 CVE IDs covered (3)

CVE-2026-15577 →CVE-2026-33374 →CVE-2026-109955 →

📋 Description

CVE-2026-15577 — grafana: Grafana: Unauthorized configuration modification via status subresource CVE-2026-33374 — grafana: grafana: Denial of Service via unbounded request body size in Prometheus rule conversion API CVE-2026-109955 — hono: hono: Security bypass via double path decoding

🎯 Affected products4

  • Red Hat Hardened Images
  • grafana12.4-0:12.4.12-0.5.hum1@aarch64 as a component of Red Hat Hardened Images
  • grafana12.4-0:12.4.12-0.5.hum1@src as a component of Red Hat Hardened Images
  • grafana12.4-0:12.4.12-0.5.hum1@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: If Git Sync / experimental provisioning is not required, disable it so the vulnerable status API is not exposed. Restrict Grafana network access to trusted administrators. Minimize identities granted even read access to Git Sync connections and audit connection settings after suspicious activity. Workaround: Restrict access to the Grafana UI and HTTP API to trusted clients and administrative networks. Limit accounts that can authenticate to Grafana and review roles that can use alerting or Prometheus rule conversion APIs. Apply process or cgroup memory limits to reduce out-of-memory blast radius. 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 (7)