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{"bugzilla": {"description": "maestro: maestro: REST API write endpoints registered without authentication middleware", "id": "2511520", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511520"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-306", "details": ["A flaw was found in Maestro. Its REST API write endpoints were registered without proper authentication middleware. This allows a remote attacker to perform unauthorized write operations, such as creating, modifying, or deleting consumers and resource bundles. This could lead to data integrity issues or a denial of service (DoS)."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, disable the OpenShift Route for the Maestro component if external authentication is not configured. This can be achieved by setting `route.enabled=false` in the Maestro Helm chart configuration. Alternatively, implement an external authentication layer, such as an Istio AuthorizationPolicy, NetworkPolicy, or oauth-proxy, to secure the exposed REST API endpoints. Disabling the route may impact functionality that relies on external access to Maestro's REST API."}, "name": "CVE-2026-71299", "package_state": [{"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "package_name": "multicluster-engine/cloudevents-conductor-rhel9", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "package_name": "multicluster-engine/maestro-rhel9", "product_name": "Multicluster Engine for Kubernetes"}], "public_date": "2026-10-05T17:38:22Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-71299\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-71299"], "statement": "This vulnerability is rated as Moderate severity because, although remote unauthenticated clients can issue modifying requests directly against exposed REST endpoints, Maestro is currently an optional Technology Preview capability within Red Hat Advanced Cluster Management and Multicluster Engine. The impact is restricted to deployments actively utilizing this preview service with default OpenShift routing enabled. Furthermore, unauthorized access does not allow arbitrary system-level code execution or compromise of the host cluster control plane.", "threat_severity": "Moderate"}

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