CVE-2026-25627 in NanoMQ MQTT Broker

Zusammenfassung (Englisch)

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.

Zuständig

GitHub_M

Reservieren

04.02.2026

Veröffentlichung

31.03.2026

Einträge

VulDB provides additional information and datapoints for this CVE:

ID	Schwachstelle	CWE	Aus	Mas	CVE
354268	NanoMQ MQTT Broker Information Disclosure	125	Nicht definiert	Offizieller Fix	CVE-2026-25627