Description
An access control issue in NanoMQ v0.21.10 allows attackers to bypass security restrictions and access sensitive system topic messages using MQTT wildcard characters.
References (3)
Core 3
Core References
Product
https://github.com/nanomq/nanomq
Exploit, Issue Tracking, Patch
https://github.com/nanomq/nanomq/issues/1782#issuecomment-2171025812
Exploit, Third Party Advisory
https://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42655.md
Scores
CVSS v3
8.8
EPSS
0.0008
EPSS Percentile
23.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-284
Status
published
Products (1)
emqx/nanomq
0.21.8
Published
Jul 29, 2025
Tracked Since
Feb 18, 2026