CVE-2026-21888
MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()
Summary
MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()
Original description
The description as published by the source.
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer() accepts 5-byte varints without bounds checks; reliably triggers OOB read / crash when built with ASan. This affects 0.24.6 and earlier.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- report github.com