CVE-2026-32135: NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.11 have a remotely…
CVE-2026-32135 · Severity: high · CVSS 7.5 · Published 2026-04-20
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-32135 being exploited in the wild.
How severe is CVE-2026-32135?
High severity, with a CVSS score of 7.5, published 20 April 2026.
Which products and versions are affected?
EMQX Nanomq. The advisory does not name versions.
Is there a fix for CVE-2026-32135?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-32135?
Check whether you run EMQX Nanomq. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.