{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71566", "assignerOrgId": "74b3a70d-cca6-4d34-9789-e83b222ae3be", "state": "PUBLISHED", "assignerShortName": "redhat-cnalr", "dateReserved": "2026-08-07T12:08:03.283Z", "datePublished": "2026-08-17T14:22:16.712Z", "dateUpdated": "2026-08-17T14:22:16.712Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "74b3a70d-cca6-4d34-9789-e83b222ae3be", "shortName": "redhat-cnalr", "dateUpdated": "2026-08-17T14:22:16.712Z"}, "title": "KubeVirt backend is not authenticated", "datePublic": "2026-08-13T16:18:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306 Missing authentication for critical function", "type": "CWE"}]}], "affected": [{"vendor": "openshift-metal3", "product": "fakefish", "repo": "https://github.com/openshift-metal3/fakefish/", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "28f9a6b", "versionType": "git"}, {"status": "unaffected", "version": "526550a", "versionType": "git"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "FakeFish handles incoming credentials by passing them down\n to scripts. This works for real hardware because in the end it's up to \nthe BMC to validate them. However, KubeVirt relies on a KUBECONFIG file \nmounted to the container and completely ignores the credentials. This allows any user of the cluster to control VMs of the \nuser that created fakefish, power them on and off, and mount arbitrary CD\n images to them.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>FakeFish handles incoming credentials by passing them down\n to scripts. This works for real hardware because in the end it's up to \nthe BMC to validate them. However, KubeVirt relies on a KUBECONFIG file \nmounted to the container and completely ignores the credentials. This allows any user of the cluster to control VMs of the \nuser that created fakefish, power them on and off, and mount arbitrary CD\n images to them.</p>"}]}], "references": [{"url": "https://github.com/openshift-metal3/fakefish/security/advisories/GHSA-qpfr-jqjq-v83w", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}}}

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