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        "cveId": "CVE-2026-73267",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2026-08-11T17:22:38.645Z",
        "datePublished": "2026-08-21T02:43:36.017Z",
        "dateUpdated": "2026-08-21T02:43:36.017Z"
    },
    "containers": {
        "cna": {
            "title": "Clusterclaims-controller: clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no ownership check",
            "metrics": [
                {
                    "other": {
                        "content": {
                            "value": "Important",
                            "namespace": "https://access.redhat.com/security/updates/classification/"
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                        "type": "Red Hat severity rating"
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                },
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.7,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                        "version": "3.1"
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                    "format": "CVSS"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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, including the hub's local-cluster or other tenants' clusters, due to a missing ownership check. This vulnerability can lead to a denial of service by enabling unauthorized deletion of ManagedClusters."
                }
            ],
            "affected": [
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                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
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                    "packageName": "multicluster-engine/clusterclaims-controller-rhel9",
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                    "tags": [
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                        "x_refsource_REDHAT"
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                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514218",
                    "name": "RHBZ#2514218",
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            "datePublic": "2026-08-11T00:00:00.000Z",
            "problemTypes": [
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                    "descriptions": [
                        {
                            "cweId": "CWE-602",
                            "description": "Client-Side Enforcement of Server-Side Security",
                            "lang": "en",
                            "type": "CWE"
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            "x_redhatCweChain": "CWE-602: Client-Side Enforcement of Server-Side Security",
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                    "lang": "en",
                    "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
                }
            ],
            "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."
                }
            ],
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