{"api_version":"1","generated_at":"2026-10-08T07:22:58+00:00","cve":"CVE-2026-66078","urls":{"html":"https://cve.report/CVE-2026-66078","api":"https://cve.report/api/cve/CVE-2026-66078.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-66078","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-66078"},"summary":{"title":"RabbitMQ: protected tag bypass via bulk-delete","description":"RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, protected tag bypass via bulk-delete. dELETE /api/users/:name refuses to delete users tagged protected (rabbitmgmtwmuser:deleteresource/2 checks isprotecteduser). POST /api/users/bulk-delete iterates the supplied username list and calls rabbitauthbackendinternal:deleteuser/2 directly , that function has no protected-tag check , so the guard is silently An administrator can delete protected-tagged service accounts via the bulk endpoint, bypassing a safeguard the test suite confirms is rabbitmqmanagement enabled Attacker has the administrator tag A protected-tagged user. This issue is fixed in versions 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-09-25 17:17:10","updated_at":"2026-09-29 20:17:21"},"problem_types":["CWE-862","CWE-862 CWE-862: Missing 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From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, protected tag bypass via bulk-delete. dELETE /api/users/:name refuses to delete users tagged protected (rabbitmgmtwmuser:deleteresource/2 checks isprotecteduser). POST /api/users/bulk-delete iterates the supplied username list and calls rabbitauthbackendinternal:deleteuser/2 directly , that function has no protected-tag check , so the guard is silently An administrator can delete protected-tagged service accounts via the bulk endpoint, bypassing a safeguard the test suite confirms is rabbitmqmanagement enabled Attacker has the administrator tag A protected-tagged user. This issue is fixed in versions 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6.","Type":"Description","Title":"RabbitMQ: protected tag bypass via bulk-delete"}]}}}