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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-21888

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nanomq nanomq

  • <= 0.24.6affected

References