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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 18 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Emqx
Emqx nanomq
CPEs cpe:2.3:a:emqx:nanomq:*:*:*:*:*:*:*:*
Vendors & Products Emqx
Emqx nanomq

Thu, 05 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 05 Mar 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Nanomq
Nanomq nanomq
Vendors & Products Nanomq
Nanomq nanomq

Wed, 04 Mar 2026 22:15:00 +0000

Type Values Removed Values Added
Description 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.
Title NanoMQ 0.24.6 Use-After-Free Leading to Heap Corruption and Broker Crash
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-05T15:42:26.352Z

Reserved: 2026-01-05T22:30:38.719Z

Link: CVE-2026-22040

cve-icon Vulnrichment

Updated: 2026-03-05T15:29:17.896Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-04T22:16:17.300

Modified: 2026-03-18T16:09:07.133

Link: CVE-2026-22040

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-05T09:05:39Z

Weaknesses