{"id":"CVE-2026-41115","state":"PUBLISHED","title":"Apache Kafka: Improper Authorization in CONSUMER_GROUP_DESCRIBE API","description":"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.","publishedAt":"2026-06-02T08:56:43.636Z","updatedAt":"2026-06-02T17:33:07.625Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Kafka"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kafka","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"4.3.0","versionType":"semver"}]}],"references":["https://kafka.apache.org/cve-list","http://www.openwall.com/lists/oss-security/2026/06/02/5"],"weaknesses":["CWE-285"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41115.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41115","state":"PUBLISHED","datePublished":"2026-06-02T08:56:43.636Z","dateUpdated":"2026-06-02T17:33:07.625Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-04-17T03:09:02.257Z"},"containers":{"cna":{"title":"Apache Kafka: Improper Authorization in CONSUMER_GROUP_DESCRIBE API","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kafka","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"4.3.0","versionType":"semver"}]}],"references":[{"url":"https://kafka.apache.org/cve-list","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"moderate"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-285","description":"CWE-285 Improper Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-06-02T08:56:43.636Z"},"credits":[{"lang":"en","type":"finder","value":"Luke Chen <showuon@gmail.com>"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-02T16:49:44.110629Z","id":"CVE-2026-41115","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-02T16:52:07.939Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/06/02/5"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-06-02T17:33:07.625Z"}}]}}}