CVE-2026-47276
Published:July 20, 2026
Updated:August 04, 2026
In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in "properties_parse()" allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to "/api/v4/mqtt/publish" with "user_properties" as a JSON array instead of a JSON object. The crash occurs because "strlen()" is called on a NULL "item->string" pointer when iterating over array elements. An authenticated attacker can exploit this to crash the NanoMQ broker process. This is patched in version 0.24.14.
Affected Packages
https://github.com/nanomq/nanomq.git (GITHUB):
Affected version(s) >=0.0.1 <0.24.14Fix Suggestion:
Update to version 0.24.14Related Resources (3)
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Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
NULL Pointer Dereference
EPSS
Base Score:
0.24