medium5.3
CVE-2026-22040
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Emqx | Nanomq | before 0.24.6 |