high7.5
CVE-2026-32135
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform.
Impact
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.11 have a remotely triggerable heap buffer overflow in the `uri_param_parse` function of NanoMQ's REST API. The vulnerability occurs due to an off-by-one error when allocating memory for query parameter keys and values, allowing an attacker to write a null byte beyond the allocated buffer. This can be triggered via a crafted HTTP request. Version 0.24.11 patches the issue.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Emqx | Nanomq | before 0.24.11 |