High [CVE-2026-7571] Access token disclosure and implicit flow bypass via forged client data
This high-severity Red Hat Linux advisory covers CVE-2026-7571 affecting rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9-operator:26.4.
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Summary
Access token disclosure and implicit flow bypass via forged client data. Red Hat rates this moderate (CVSS 7.1).
Weakness: CWE-472. Affected package(s): rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-rhel9-operator, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9-operator:26.4.
Resolved in Red Hat advisory RHSA-2026:19596 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux.
- rhbk/keycloak-operator-bundle:26.4.12-1
- rhbk/keycloak-rhel9-operator
- rhbk/keycloak-rhel9:26.4-17
- rhbk/keycloak-rhel9-operator:26.4-17
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:19596
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19596 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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