{"id":"CVE-2026-57211","summary":"RabbitMQ: UNC SSRF affecting the management UI on Windows","details":"RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.","aliases":["GHSA-7v84-m3g5-vxq6"],"modified":"2026-07-16T03:48:40.584471318Z","published":"2026-07-10T20:16:01.719Z","database_specific":{"cwe_ids":["CWE-36","CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57211.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.1.0"},{"fixed":"4.1.11"}]}],"cna_assigner":"GitHub_M"},"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-2026-57211.json"},{"type":"ADVISORY","url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57211"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204"},{"type":"FIX","url":"https://github.com/rabbitmq/rabbitmq-server/pull/15803"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rabbitmq/rabbitmq-server","events":[{"introduced":"1861a703c1234de44cfd704a9829d68f4b24e65c"},{"fixed":"8a56c37f099a7bf609a555de3f0ff8ed23964d20"},{"fixed":"39c3a8e9c71da0403d8dfc13f700e60c936e3682"},{"fixed":"6730797f6a34b4e8308cea60adf1243857e70204"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.1.0"},{"fixed":"4.2.6"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57211.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N"}]}