{"id":"CVE-2024-42655","details":"An access control issue in NanoMQ v0.21.10 allows attackers to bypass security restrictions and access sensitive system topic messages using MQTT wildcard characters.","modified":"2026-08-12T03:51:39.794415615Z","published":"2025-07-29T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42655.json"},"references":[{"type":"WEB","url":"https://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42655.md"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42655.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-42655"},{"type":"REPORT","url":"https://github.com/nanomq/nanomq/issues/1782#issuecomment-2171025812"},{"type":"PACKAGE","url":"https://github.com/nanomq/nanomq"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nanomq/nanomq","events":[{"introduced":"3f35ac446c6f612d4826286d32bfd8e5a1972e71"},{"last_affected":"3f35ac446c6f612d4826286d32bfd8e5a1972e71"}],"database_specific":{"cpe":"cpe:2.3:a:emqx:nanomq:0.21.8:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0.21.8"},{"last_affected":"0.21.8"}],"source":"CPE_STRING"}}],"versions":["0.21.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42655.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}