{"id":"CVE-2026-41115","summary":"Apache Kafka: Improper Authorization in CONSUMER_GROUP_DESCRIBE API","details":"An improper authorization vulnerability has been identified in Apache Kafka.\n\nThe implementation of the CONSUMER_GROUP_DESCRIBE (69) API validates the DESCRIBE operation on the GROUP resource instead of the READ operation that documented in the official kafka documentation and the KIP-848. This discrepancy can result in misconfigured Access Control Lists (ACLs) and unintended security postures, like granting READ permission to users who should not be able to join/sync groups, or allowing users without READ permission (but with DESCRIBE permission) to access sensitive group metadata.\n\nThe correct permission for CONSUMER_GROUP_DESCRIBE API is DESCRIBE GROUP so the current implementation is correct. However, the kafka documentation as well as the KIP-848 will be updated to reflect the correct permission. We advise the Kafka users to review existing group ACLs to ensure the principle of least privilege.","aliases":["BIT-kafka-2026-41115"],"modified":"2026-07-08T08:13:12.884134357Z","published":"2026-06-02T08:56:43.636Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41115.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.0.0"},{"last_affected":"4.3.0"}]}],"cwe_ids":["CWE-285"],"cna_assigner":"apache"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/02/5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41115.json"},{"type":"ADVISORY","url":"https://kafka.apache.org/cve-list"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41115"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/kafka","events":[{"introduced":"985bc99521dd22bbf620591b8db8613c54f596b2"},{"last_affected":"a9ce3221537b8653448750697915607dc7936cf3"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:kafka:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0.0"},{"last_affected":"4.3.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41115.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}