High [CVE-2026-40293] Information disclosure of preshared API key via playground endpoint
This high-severity Red Hat Linux advisory covers CVE-2026-40293 affecting Red Hat Advanced Cluster Management for Kubernetes 2.14, Red Hat Advanced Cluster Management for Kubernetes 2.15.
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Summary
Information disclosure of preshared API key via playground endpoint. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-201. Affected package(s): multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779925273, rhacm2/acm-grafana-rhel9:1780677003.
Resolved in Red Hat advisory RHSA-2026:24539 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15.
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779925273
- rhacm2/acm-grafana-rhel9:1780677003
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:24539
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-2026:24539 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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