Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when a configured authenticator or authorizator class cannot be loaded, Server.initializeAuthenticator and Server.initializeAuthorizatorPolicy treat the failure as though no custom class was configured and fall back to AcceptAllAuthenticator or PermitAllAuthorizatorPolicy. A misspelled class name, missing dependency, constructor failure, or classpath problem can therefore start the broker with authentication or authorization disabled even though the operator configured those controls. This issue is fixed in version 0.18.1.

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Wed, 23 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when a configured authenticator or authorizator class cannot be loaded, Server.initializeAuthenticator and Server.initializeAuthorizatorPolicy treat the failure as though no custom class was configured and fall back to AcceptAllAuthenticator or PermitAllAuthorizatorPolicy. A misspelled class name, missing dependency, constructor failure, or classpath problem can therefore start the broker with authentication or authorization disabled even though the operator configured those controls. This issue is fixed in version 0.18.1.
Title Moquette fails open when configured authentication or authorization classes cannot load
Weaknesses CWE-636
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-23T16:29:58.300Z

Reserved: 2026-09-22T16:39:45.794Z

Link: CVE-2026-95848

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-23T17:17:21.947

Modified: 2026-09-23T17:17:21.947

Link: CVE-2026-95848

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T17:30:06Z

Weaknesses