{"id":"CVE-2026-118952","aliases":["EUVD-2026-113733","GHSA-vpwg-79f7-v3cx"],"status":"published","title":"Kroxylicious-authorizer-acl: kroxylicious: acl prefix matching can bypass authorization rules","description":"A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00231,"percentile":0.14038,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-10-30T06:04:14Z","modified":"2026-10-30T09:31:29Z","products":[{"vendor":"red hat","product":"streams for apache kafka 2"},{"vendor":"red hat","product":"streams for apache kafka 3"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-118952","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2563276","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://github.com/kroxylicious/kroxylicious/security/advisories/GHSA-qvv3-6w3q-hgqc"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118952"},{"url":"https://github.com/advisories/GHSA-vpwg-79f7-v3cx"}],"sources":{"cve":[{"id":"CVE-2026-118952","title":"Kroxylicious-authorizer-acl: kroxylicious: acl prefix matching can bypass authorization rules","description":"A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.","status":"published","published":"2026-10-30T06:04:14.196Z","modified":"2026-10-30T06:04:14.196Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:20:04.156238Z"}],"euvd":[{"id":"EUVD-2026-113733","description":"A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.","status":"published","published":"2026-10-30T06:04:14Z","modified":"2026-10-30T06:04:14Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:59:13.084737Z"}],"ghsa":[{"id":"GHSA-vpwg-79f7-v3cx","title":"A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule...","description":"A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.","status":"published","published":"2026-10-30T09:31:24Z","modified":"2026-10-30T09:31:29Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:14:41.74258Z"}],"nvd":[{"id":"CVE-2026-118952","description":"A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.","status":"published","published":"2026-10-30T07:16:33.41Z","modified":"2026-10-30T07:16:33.547Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:13:04.940026Z"}]}}