High · 8.8 CVE-2024-42655 EUVD-2024-54835GHSA-w7fr-grpr-9jg5

An access control issue in NanoMQ v0.21.10 allows attackers to bypass security restrictions and access sensitive system topic messages usin…

Published Jul 29, 2025 · Updated Jul 29, 2025 · Assigned by mitre

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

https://github.com/nanomq/nanomq
https://github.com/nanomq/nanomq/issues/1782#issuecomment-2171025812
https://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42655.md