Skip to content
OpenAdvisories
High · 7.7 CVE-2026-32135 EUVD-2026-23939

NanoMQ has Heap Buffer Overflow in URI Parameter Parsing

Published Apr 20, 2026 · Updated Apr 21, 2026 · Assigned by GitHub_M

Description

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.11 have a remotely triggerable heap buffer overflow in the `uri_param_parse` function of NanoMQ's REST API. The vulnerability occurs due to an off-by-one error when allocating memory for query parameter keys and values, allowing an attacker to write a null byte beyond the allocated buffer. This can be triggered via a crafted HTTP request. Version 0.24.11 patches the issue.

Affected products

VendorProductAffectedFixed
nanomq nanomq < 0.24.11 —

References