{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71299","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-08-05T14:50:01.309Z","datePublished":"2026-10-05T19:06:52.146Z","dateUpdated":"2026-10-07T20:13:41.092Z"},"containers":{"cna":{"title":"Maestro: maestro: rest api write endpoints registered without authentication middleware","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"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)."}],"affected":[{"vendor":"Red Hat","product":"Multicluster Engine for Kubernetes","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"multicluster-engine/cloudevents-conductor-rhel9","defaultStatus":"affected","cpes":["cpe:/a:redhat:multicluster_engine"]},{"vendor":"Red Hat","product":"Multicluster Engine for Kubernetes","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"multicluster-engine/maestro-rhel9","defaultStatus":"affected","cpes":["cpe:/a:redhat:multicluster_engine"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-71299","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511520","name":"RHBZ#2511520","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-10-05T17:38:22.249Z","problemTypes":[{"descriptions":[{"cweId":"CWE-306","description":"Missing Authentication for Critical Function","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-306: Missing Authentication for Critical Function","workarounds":[{"lang":"en","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."}],"timeline":[{"lang":"en","time":"2026-08-05T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-10-05T17:38:22.249Z","value":"Made public."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-10-05T19:06:52.146Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T20:13:29.558399Z","id":"CVE-2026-71299","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-07T20:13:41.092Z"}}]}}