{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73269","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-08-11T17:22:38.645Z","datePublished":"2026-08-12T19:05:05.235Z","dateUpdated":"2026-08-26T04:19:48.429Z"},"containers":{"cna":{"title":"Cluster-curator-controller: cluster-curator-controller: tenant-controllable trigger creates clusterrolebinding granting cluster-wide secrets access to namespace-local sa","metrics":[{"other":{"content":{"value":"Important","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools."}],"affected":[{"vendor":"Red Hat","product":"multicluster engine for Kubernetes 2.10","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"multicluster-engine/cluster-curator-controller-rhel9","defaultStatus":"affected","versions":[{"version":"1787201612","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:multicluster_engine:2.10::el9"]},{"vendor":"Red Hat","product":"multicluster engine for Kubernetes 2.11","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"multicluster-engine/cluster-curator-controller-rhel9","defaultStatus":"affected","versions":[{"version":"1787238383","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:multicluster_engine:2.11::el9"]},{"vendor":"Red Hat","product":"multicluster engine for Kubernetes 2.17","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"multicluster-engine/cluster-curator-controller-rhel9","defaultStatus":"affected","versions":[{"version":"1786750700","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:multicluster_engine:2.17::el9"]},{"vendor":"Red Hat","product":"multicluster engine for Kubernetes 2.6","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"multicluster-engine/cluster-curator-controller-rhel9","defaultStatus":"affected","versions":[{"version":"1787264185","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:multicluster_engine:2.6::el9"]},{"vendor":"Red Hat","product":"multicluster engine for Kubernetes 2.8","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"multicluster-engine/cluster-curator-controller-rhel9","defaultStatus":"affected","versions":[{"version":"1787259011","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:multicluster_engine:2.8::el9"]},{"vendor":"Red Hat","product":"multicluster engine for Kubernetes 2.9","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"multicluster-engine/cluster-curator-controller-rhel9","defaultStatus":"affected","versions":[{"version":"1787201646","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:multicluster_engine:2.9::el9"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:59556","name":"RHSA-2026:59556","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:59557","name":"RHSA-2026:59557","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:59558","name":"RHSA-2026:59558","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:59559","name":"RHSA-2026:59559","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:59579","name":"RHSA-2026:59579","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:59593","name":"RHSA-2026:59593","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-73269","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2514220","name":"RHBZ#2514220","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-08-11T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-269","description":"Improper Privilege Management","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-269: Improper Privilege Management","workarounds":[{"lang":"en","value":"To mitigate this issue, restrict the ability of tenants to create `ClusterCurator` resources. Implement Kubernetes Role-Based Access Control (RBAC) policies to limit `create` permissions for `clustercurators.cluster.open-cluster-management.io` resources to only trusted administrators or service accounts. Alternatively, deploy an admission controller to enforce that `metadata.name` and `metadata.namespace` fields are identical when `ClusterCurator` resources are created, preventing the vulnerable condition."}],"timeline":[{"lang":"en","time":"2026-08-10T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-11T00:00:00.000Z","value":"Made public."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-08-26T04:19:48.429Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-12T20:47:02.826289Z","id":"CVE-2026-73269","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-12T20:55:28.504Z"}}]}}