{"id":"CVE-2026-57217","summary":"RabbitMQ: Topic authorization can lead to cross-tenant routing-key bypass","details":"RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backend treats as allow. This issue is fixed in versions 3.13.15, 4.0.21, 4.1.11, and 4.2.6.","aliases":["GHSA-gpvw-75h5-3wvx"],"modified":"2026-07-16T03:48:43.391437551Z","published":"2026-07-10T20:25:29.498Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57217.json","unresolved_ranges":[{"extracted_events":[{"introduced":"4.1.0"},{"fixed":"4.1.11"},{"introduced":"4.0.0"},{"fixed":"4.0.21"},{"introduced":"3.13.0"},{"fixed":"3.13.15"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"WEB","url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57217.json"},{"type":"ADVISORY","url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-gpvw-75h5-3wvx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57217"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/commit/94f1d33a70fcfa09006649599e79fc92786a2d36"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/commit/ce1f682aa6b398820c5e3ce1ff7435184027c82c"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/pull/15941"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/pull/15943"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rabbitmq/rabbitmq-server","events":[{"introduced":"c73bcd30fcadd77f3ec354c686f969fc971ac940"},{"fixed":"8a56c37f099a7bf609a555de3f0ff8ed23964d20"},{"fixed":"94f1d33a70fcfa09006649599e79fc92786a2d36"},{"fixed":"ce1f682aa6b398820c5e3ce1ff7435184027c82c"}],"database_specific":{"cpe":"cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.13.0"},{"fixed":"4.2.6"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v4.2.5","v4.2.4","v4.2.3","v4.2.2","v4.2.1","v4.2.0","v4.2.0-rc.1","v4.2.0-beta.4","v4.2.0-beta.3","v4.2.0-beta.2","v4.2.0-beta.1","v4.1.0-beta.4","v4.1.0-beta.3","v4.1.0-beta.2","v4.1.0-beta.1","v4.1.0-alpha","v3.13.0-rc.6","v3.13.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57217.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N"}]}