{"id":"CVE-2026-22040","summary":"NanoMQ 0.24.6 Use-After-Free Leading to Heap Corruption and Broker Crash","details":"NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, by generating a combined traffic pattern of high-frequency publishes and rapid reconnect/kick-out using the same ClientID and massive subscribe/unsubscribe jitter, it is possible to reliably trigger heap memory corruption in the Broker process, causing it to exit immediately with SIGABRT due to free(): invalid pointer. As of time of publication, no known patched versions are available.","aliases":["GHSA-v57q-w88m-424r"],"modified":"2026-04-10T05:38:43.633879Z","published":"2026-03-04T21:55:11.238Z","database_specific":{"cwe_ids":["CWE-416"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22040.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22040.json"},{"type":"ADVISORY","url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-v57q-w88m-424r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22040"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/emqx/nanomq","events":[{"introduced":"0"},{"fixed":"dc3a3136cd82d5c005b8cd26a65fe53beaaf0eb9"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.24.6"}]}}],"versions":["0.0.1","0.0.2","0.0.3","0.1.0","0.10.1","0.10.5","0.10.8","0.11.0","0.11.2","0.11.3","0.11.5","0.11.8","0.11.82","0.12.0","0.12.1","0.12.2","0.12.5","0.13.0","0.13.6","0.13.8","0.14.0","0.14.1","0.14.5","0.14.8","0.15.0","0.15.1","0.15.2","0.15.3","0.15.5","0.16.0","0.16.2","0.16.3","0.16.5","0.17.2","0.17.5","0.17.8","0.18.1","0.18.2","0.19.0","0.19.1","0.19.5","0.2.0","0.2.1","0.2.2","0.2.5","0.20.0","0.20.5","0.20.6","0.20.8","0.21","0.21.1","0.21.10","0.21.2","0.21.5","0.21.6","0.21.7","0.21.8","0.21.9","0.22.0","0.22.1","0.22.10","0.22.2","0.22.3","0.22.6","0.22.7","0.22.8","0.23.0","0.23.1","0.23.10","0.23.2","0.23.3","0.23.4","0.23.5","0.23.6","0.23.7","0.23.7-11","0.23.8","0.23.9","0.24.0","0.24.1","0.24.2","0.24.3","0.24.3-5","0.24.4","0.24.5","0.3.0","0.3.2","0.3.3","0.3.4","0.3.5","0.3.8","0.4.0","0.4.1","0.4.2","0.4.3","0.4.5","0.4.8","0.5.0","0.5.2","0.5.5","0.5.8","0.5.9","0.6.0","0.6.2","0.6.3","0.6.4","0.6.7rc","0.6.8","0.7.0","0.7.2","0.7.3","0.7.4","0.7.4rc","0.7.5","0.7.5rc","0.7.8","0.7.9","0.8.0","0.8.3","0.8.5","0.8.6log","0.9.0","0.9.2","0.9.5","0.9.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22040.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/nanomq/nanomq","events":[{"introduced":"0"},{"last_affected":"dc3a3136cd82d5c005b8cd26a65fe53beaaf0eb9"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"= 0.24.6"}]}}],"versions":["0.0.1","0.0.2","0.0.3","0.1.0","0.10.1","0.10.5","0.10.8","0.11.0","0.11.2","0.11.3","0.11.5","0.11.8","0.11.82","0.12.0","0.12.1","0.12.2","0.12.5","0.13.0","0.13.6","0.13.8","0.14.0","0.14.1","0.14.5","0.14.8","0.15.0","0.15.1","0.15.2","0.15.3","0.15.5","0.16.0","0.16.2","0.16.3","0.16.5","0.17.2","0.17.5","0.17.8","0.18.1","0.18.2","0.19.0","0.19.1","0.19.5","0.2.0","0.2.1","0.2.2","0.2.5","0.20.0","0.20.5","0.20.6","0.20.8","0.21","0.21.1","0.21.10","0.21.2","0.21.5","0.21.6","0.21.7","0.21.8","0.21.9","0.22.0","0.22.1","0.22.10","0.22.2","0.22.3","0.22.6","0.22.7","0.22.8","0.23.0","0.23.1","0.23.10","0.23.2","0.23.3","0.23.4","0.23.5","0.23.6","0.23.7","0.23.7-11","0.23.8","0.23.9","0.24.0","0.24.1","0.24.2","0.24.3","0.24.3-5","0.24.4","0.24.5","0.24.6","0.3.0","0.3.2","0.3.3","0.3.4","0.3.5","0.3.8","0.4.0","0.4.1","0.4.2","0.4.3","0.4.5","0.4.8","0.5.0","0.5.2","0.5.5","0.5.8","0.5.9","0.6.0","0.6.2","0.6.3","0.6.4","0.6.7rc","0.6.8","0.7.0","0.7.2","0.7.3","0.7.4","0.7.4rc","0.7.5","0.7.5rc","0.7.8","0.7.9","0.8.0","0.8.3","0.8.5","0.8.6log","0.9.0","0.9.2","0.9.5","0.9.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22040.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}