CVE-2026-95848Critical· 9.3▾ AbyssalPoC availableMoquette 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 cu…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 51.2 · likelihood 0 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-95847High· 8.8Moquette is a lightweight Java MQTT broker
CVE-2026-95842High· 8.7Moquette is a lightweight Java MQTT broker
CVE-2026-95843High· 8.7Moquette is a lightweight Java MQTT broker
CVE-2026-85724Critical· 9.6Moquette is a lightweight Java MQTT broker
CVE-2026-95845High· 8.7Moquette is a lightweight Java MQTT broker
CVE-2026-95846High· 8.7Moquette is a lightweight Java MQTT broker