CVE-2026-22040— NanoMQ 0.24.6 Use-After-Free Leading to Heap Corruption and Broker Crash
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I. Basic Information for CVE-2026-22040
Vulnerability Information
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Vulnerability Title
NanoMQ 0.24.6 Use-After-Free Leading to Heap Corruption and Broker Crash
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
NanoMQ 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NanoMQ是美国EMQ开源的一款用于物联网边缘平台的轻量级快速 MQTT Broker。 nanomq 0.24.6版本存在资源管理错误漏洞，该漏洞源于堆内存损坏，可能导致代理进程立即退出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-22040
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IV. Related Vulnerabilities
Same product: nanomq
- CVE-2026-32135
NanoMQ has Heap Buffer Overflow in URI Parameter Parsing - CVE-2026-34608
nanomq: Heap-Buffer-Overflow in webhook_inproc.c via cJSON_P - CVE-2026-32696
NanoMQ HTTP Auth: Missing username/password can trigger a NU - CVE-2026-25627
nanomq: OOB Read / Crash (DoS) via Malformed MQTT Remaining - CVE-2026-21888
MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var
Same vendor: nanomq
- CVE-2026-32135
NanoMQ has Heap Buffer Overflow in URI Parameter Parsing - CVE-2026-34608
nanomq: Heap-Buffer-Overflow in webhook_inproc.c via cJSON_P - CVE-2026-32696
NanoMQ HTTP Auth: Missing username/password can trigger a NU - CVE-2026-25627
nanomq: OOB Read / Crash (DoS) via Malformed MQTT Remaining - CVE-2026-21888
MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var
V. Comments for CVE-2026-22040
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