PT-2026-71706 · Red Hat · Multicluster Engine For Kubernetes+6

CVE-2026-73266

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Published

2026-08-13

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Updated

2026-08-18

CVSS v3.1

7.1

High

VectorAV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Name of the Vulnerable Software and Affected Versions Multicluster Engine (affected versions not specified)
Description A flaw in the clusterclaims-controller component allows an authenticated tenant to manipulate ClusterClaim labels. This manipulation enables a tenant to force a cluster to join a ManagedClusterSet belonging to another tenant, potentially leading to the unauthorized injection of policies and workloads into clusters owned by other tenants.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Weakness Enumeration

Related Identifiers

CVE-2026-73266

Affected Products

Multicluster Engine For Kubernetes
Multicluster Engine For Kubernetes 2.10
Multicluster Engine For Kubernetes 2.11
Multicluster Engine For Kubernetes 2.17
Multicluster Engine For Kubernetes 2.6
Multicluster Engine For Kubernetes 2.8
Multicluster Engine For Kubernetes 2.9