Session fixation in OIDC login flow that can lead to account takeover
Summary
Session fixation in OIDC login flow that can lead to account takeover. Red Hat rates this important (CVSS 7.5). Weakness: CWE-290. Affected package(s): rhbk/keycloak-rhel9-operator, 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-operator
- 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 1 day ago·verify at source
- RHSA-2026:19594
Official advisory · high-confidence parse· fetched 1 day 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 1 day ago·verify at source
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