CVE-2026-22040

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, by generating a combined traffic pattern of high-frequency publishes and rapid reconnect/kick-out using the same ClientID and massive subscribe/unsubscribe jitter, it is possible to reliably trigger heap memory corruption in the Broker process, causing it to exit immediately with SIGABRT due to free(): invalid pointer. As of time of publication, no known patched versions are available.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
nanomq	nanomq	= 0.24.6

References

https://github.com/nanomq/nanomq/security/advisories/GHSA-v57q-w88m-424rExploit, Vendor Advisory

Timeline

Published: Mar 4, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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