QwikSec

Security Database

CVE

CWE

Training

CVE-2026-32696

Published: Mar 30, 2026

Modified: Mar 31, 2026

PUBLISHED

CVSS v3.1

3.1

LOW

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.

Vendor	Product	Versions
nanomq	nanomq	affected `>= 0.24.6, < 0.24.7`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

https://github.com/nanomq/nanomq/security/advisories/GHSA-77f4-wvq8-mp3p

x_refsource_CONFIRM

https://github.com/nanomq/NanoNNG/pull/1394

x_refsource_MISC

https://github.com/nanomq/NanoNNG/commit/c20aa27e5290bb480a5315099952480d35f37a8b

x_refsource_MISC

https://github.com/nanomq/nanomq/releases/tag/0.24.7

x_refsource_MISC

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.