CVE-2026-21888 MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. MQTT v5 Variable Byte Integer parsing out-of-bounds: getvarinteger accepts 5-byte varints without bounds checks; reliably triggers OOB read / crash when built with ASan. This affects 0.24.6 and earlier...

CVE-2025-59946

NanoMQ MQTT Broker NanoMQ is an Edge Messaging Platform. Prior to version 0.24.2, there is a classical data racing issue about sub info list which could result in heap use after free crash. This issue has been patched in version 0.24.2...