HIGH 7.7 NVD
CVE-2026-89060
A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configu
A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference Secrets, the add-on may copy the referenced Secrets to the attacker-controlled managed cluster.
References
- https://access.redhat.com/security/cve/CVE-2026-89060
- https://bugzilla.redhat.com/show_bug.cgi?id=2531596
- https://github.com/stolostron/multicluster-observability-addon/pull/644
This high severity vulnerability with a CVSS score of 7.7 was published on 2026-09-11 via NVD.
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