🛡️ CVE-2026-32696
🟢 CVSS 3.1 — Low ⚠️ Exploit Public CWE-476 NVD
3.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In NanoMQ version 0.24.6, after enabling auth.http_auth (HTTP authentication), when a client connects to the broker using MQTT CONNECT without providing username/password, and the configuration params uses the placeholders %u / %P (e.g., username="%u", password="%P"), the HTTP request construction phase enters auth_http.c:set_data(). This results in calling strlen() on a NULL pointer, causing a SIGSEGV crash. This crash can be triggered remotely, resulting in a denial of service. This issue has been patched in version 0.24.7.

Details

Severity LOW
CVSS Score 3.1
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE CWE-476
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-30
Updated 2026-06-02
Modified 2026-04-13

Affected Packages

Software From version Fixed in
nanomq — 0.24.7

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