Denial of Service via specially crafted SAML input
Summary
Denial of Service via specially crafted SAML input. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1286. Affected package(s): rhbk/keycloak-rhel9, rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-operator-bundle:26.2.16, rhbk/keycloak-rhel9-operator:26.2, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9:26.2. Resolved in Red Hat advisory RHSA-2026:19594 — update the affected packages (`sudo dnf update`).
- rhbk/keycloak-rhel9
- rhbk/keycloak-operator-bundle:26.4.12-1
- rhbk/keycloak-operator-bundle:26.2.16-1
- rhbk/keycloak-rhel9-operator:26.2-21
- rhbk/keycloak-rhel9:26.4-17
- rhbk/keycloak-rhel9:26.2-21
- rhbk/keycloak-rhel9-operator:26.4-17
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- RHSA-2026:19594
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19594 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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