Denial of Service via excessive processing of OpenID Connect scope parameters
Summary
Denial of Service via excessive processing of OpenID Connect scope parameters. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1050. Affected package(s): rhbk/keycloak-rhel9-operator:26.2, rhbk/keycloak-rhel9, rhbk/keycloak-operator-bundle:26.4.11, rhbk/keycloak-rhel9:26.2, rhbk/keycloak-operator-bundle:26.2.15, rhbk/keycloak-rhel9-operator:26.4. Resolved in Red Hat advisory RHSA-2026:6478 — update the affected packages (`sudo dnf update`).
- rhbk/keycloak-rhel9-operator:26.2-18
- rhbk/keycloak-rhel9
- rhbk/keycloak-operator-bundle:26.4.11-1
- rhbk/keycloak-rhel9:26.2-18
- rhbk/keycloak-operator-bundle:26.2.15-1
- rhbk/keycloak-rhel9-operator:26.4-14
- rhbk/keycloak-rhel9:26.4-14
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
- RHSA-2026:6478
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:6478 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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