CVE-2026-91182

A flaw was found in open-cluster-management. An agent communicating via the gRPC broker can bypass authorization by manipulating the ce-clustername cloud event header attribute, which is used for authorization, independently of the actual event payload. This allows a registered managed cluster to...

CVE-2026-73267 Clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no local ownership check

A flaw was found in the clusterclaims-controller component of multicluster engine MCE. A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the spec.namespace field. This allows the tenant to specify and delete any ManagedCluster, includi...

CVE-2026-73267

A flaw was found in the clusterclaims-controller component of multicluster engine MCE. A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the "spec.namespace" field. This allows the tenant to specify and delete any ManagedCluster,...

CVE-2026-73267

In Red Hat's multicluster engine, the clusterclaims-controller deletes ManagedClusters based solely on clusterclaim.spec.namespace without verifying ownership. Any tenant with standard ClusterClaim permissions can delete any cluster, including the hub's local-cluster, causing a HIGH-severity (7.7...

CVE-2026-73267: Client-Side Enforcement of Server-Side Security

A flaw was found in the clusterclaims-controller component of multicluster engine MCE. A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the spec.namespace field. This allows the tenant to specify and delete any ManagedCluster, includi...

PT-2026-79290

Name of the Vulnerable Software and Affected Versions multicluster engine affected versions not specified Description A flaw in the clusterclaims-controller component allows a tenant with standard permissions to create and delete ClusterClaim resources to cause a denial of service. By manipulatin...

CVE-2026-66795

A flaw was found in the managedcluster-import-controller. The Certificate Signing Request CSR auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a...

CVE-2026-66795

The managedcluster-import-controller's CSR auto-approver skips validation of signer name, certificate subject, and requester identity, letting a privileged spoke-cluster service account submit a malicious CSR and escalate to hub-cluster admin. CVSS 9.1 critical; no exploitation evidence provided....

CVE-2026-66795 Managedcluster-import-controller: csr auto-approver does not validate certificate subject or signername (spoke→hub cluster-admin)

A flaw was found in the managedcluster-import-controller. The Certificate Signing Request CSR auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a...

CVE-2026-66795 Managedcluster-import-controller: csr auto-approver does not validate certificate subject or signername (spoke→hub cluster-admin)

A flaw was found in the managedcluster-import-controller. The Certificate Signing Request CSR auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a...

EUVD-2026-60452

A flaw was found in the managedcluster-import-controller. The Certificate Signing Request CSR auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a...

CVE-2026-66795

A flaw was found in the managedcluster-import-controller. The Certificate Signing Request CSR auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a...

CVE-2026-66795: Improper Certificate Validation

A flaw was found in the managedcluster-import-controller. The Certificate Signing Request CSR auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a...

PT-2026-76789

Name of the Vulnerable Software and Affected Versions managedcluster-import-controller affected versions not specified Description The managedcluster-import-controller contains a flaw in its Certificate Signing Request CSR auto-approval logic. The system fails to properly validate incoming CSRs...