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{"bugzilla": {"description": "nats-server: github.com/nats-io/nats-server: NATS-Server: Access control bypass via unapplied ACLs in MQTT namespace", "id": "2451446", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451446"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-425", "details": ["A flaw was found in NATS-Server. When Access Control Lists (ACLs) were configured for message subjects, these controls were not correctly applied within the `$MQTT.>` namespace. This oversight allows MQTT clients to bypass the intended ACL checks, potentially granting unauthorized access to sensitive message subjects. This vulnerability could lead to information disclosure or unauthorized message manipulation."], "mitigation": {"lang": "en:us", "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."}, "name": "CVE-2026-33217", "package_state": [{"cpe": "cpe:/a:redhat:multicluster_globalhub", "fix_state": "Affected", "package_name": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product_name": "Multicluster Global Hub"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/oc-mirror-plugin-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-03-25T19:43:40Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-33217\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-33217\nhttps://advisories.nats.io/CVE/secnote-2026-07.txt\nhttps://github.com/nats-io/nats-server/security/advisories/GHSA-jxxm-27vp-c3m5"], "threat_severity": "Important"}