Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 0 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.13 | unaffected 1789126264 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.14 | unaffected 1789126262 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.15 | unaffected 1789126262 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1789126267 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1789126264 before * |
CWE
CWE-551
References
- https://access.redhat.com/errata/RHSA-2026:67539
- https://access.redhat.com/errata/RHSA-2026:67540
- https://access.redhat.com/errata/RHSA-2026:67541
- https://access.redhat.com/errata/RHSA-2026:67542
- https://access.redhat.com/errata/RHSA-2026:67543
- 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
ADP enrichment
No English description supplied.
No references supplied.