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Nanomq CVE-2026-22040

MEDIUM
Use After Free (CWE-416)
2026-03-04 security-advisories@github.com
Buffer Overflow Use After Free Memory Corruption Nanomq
5.3
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:05 vuln.today
CVE Published
Mar 04, 2026 - 22:16 nvd
MEDIUM 5.3

DescriptionNVD

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.

AnalysisAI

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. [CVSS 5.3 MEDIUM]

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CVE-2026-22040 vulnerability details – vuln.today
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