CVE-2026-25627 in NanoMQ MQTT Broker

Resumen (Inglés)

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to version 0.24.8, NanoMQ’s MQTT-over-WebSocket transport can be crashed by sending an MQTT packet with a deliberately large Remaining Length in the fixed header while providing a much shorter actual payload. The code path copies Remaining Length bytes without verifying that the current receive buffer contains that many bytes, resulting in an out-of-bounds read (ASAN reports OOB / crash). This is remotely triggerable over the WebSocket listener. This issue has been patched in version 0.24.8.

Responsable

GitHub_M

Reservar

2026-02-04

Divulgación

2026-03-31

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
354268	NanoMQ MQTT Broker divulgación de información	125	No está definido	Arreglo oficial	CVE-2026-25627