CVE-2026-22040

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published3/4/2026

Last Modified3/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

emqx:nanomq

Weaknesses (CWE)

CWE-416

References

https://github.com/nanomq/nanomq/security/advisories/GHSA-v57q-w88m-424r(security-advisories@github.com)

IOC Correlations

No correlations recorded

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