CVE-2026-22040
NanoMQ 0.24.6 Use-After-Free Leading to Heap Corruption and Broker Crash
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-416 |
| Vendor | nanomq |
| Product | nanomq |
| Published | Mar 4, 2026 |
| Last Updated | Mar 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
nanomq / nanomq
= 0.24.6