Critical

Cluster-curator-controller: cluster-curator-controller: tenant-controllable trigger creates clusterrolebinding granting cluster-wide secrets access to namespace-local sa

Type: advisorySource: Official CVE List1 source record

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.

Announced 12 Aug 2026Group revision 1

Original source ↗

CVE-2026-73269

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-73269

multicluster engine for Kubernetes 2.10

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

multicluster engine for Kubernetes 2.11

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

multicluster engine for Kubernetes 2.17

Source reference: /containers/cna/affected/2/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

multicluster engine for Kubernetes 2.6

Source reference: /containers/cna/affected/3/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

multicluster engine for Kubernetes 2.8

Source reference: /containers/cna/affected/4/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

multicluster engine for Kubernetes 2.9

Source reference: /containers/cna/affected/5/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:/a:redhat:multicluster_engine:2.10::el9"
    ],
    "vendor": "Red Hat",
    "product": "multicluster engine for Kubernetes 2.10",
    "versions": [
      {
        "status": "unaffected",
        "version": "1787201612",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:multicluster_engine:2.11::el9"
    ],
    "vendor": "Red Hat",
    "product": "multicluster engine for Kubernetes 2.11",
    "versions": [
      {
        "status": "unaffected",
        "version": "1787238383",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:multicluster_engine:2.17::el9"
    ],
    "vendor": "Red Hat",
    "product": "multicluster engine for Kubernetes 2.17",
    "versions": [
      {
        "status": "unaffected",
        "version": "1786750700",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:multicluster_engine:2.6::el9"
    ],
    "vendor": "Red Hat",
    "product": "multicluster engine for Kubernetes 2.6",
    "versions": [
      {
        "status": "unaffected",
        "version": "1787264185",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:multicluster_engine:2.8::el9"
    ],
    "vendor": "Red Hat",
    "product": "multicluster engine for Kubernetes 2.8",
    "versions": [
      {
        "status": "unaffected",
        "version": "1787259011",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:multicluster_engine:2.9::el9"
    ],
    "vendor": "Red Hat",
    "product": "multicluster engine for Kubernetes 2.9",
    "versions": [
      {
        "status": "unaffected",
        "version": "1787201646",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "multicluster-engine/cluster-curator-controller-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  }
]

Related CVEs: CVE-2026-73269
Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event: #3987 · Revision 1
Added to Heist Feed: Sat, 24 Oct 2026 21:44:40 GMT
Publisher date: Wed, 12 Aug 2026 19:05:05 GMT

Read the original announcement

Revision history

24 Oct 2026CVE-2026-73269 · Revision 1Source updated