CVE-2026-89060
Last modified
CVE-2026-89060 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| — | — | < * |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | All versions |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | All versions |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | All versions |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | All versions |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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