CVE-2026-95842High· 8.7▾ MidnightPoC availableMoquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can term…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 47.8 · 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.
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can terminate an event loop shared by multiple client sessions, preventing every co-located client from processing PUBLISH, SUBSCRIBE, PUBACK, and other commands. An attacker can select client IDs that map across the available loops to disrupt session processing for the entire broker. This issue is fixed in version 0.18.1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-95848Critical· 9.3Moquette is a lightweight Java MQTT broker
CVE-2026-95847High· 8.8Moquette 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-2026-95846High· 8.7Moquette is a lightweight Java MQTT broker
CVE-2026-95845High· 8.7Moquette is a lightweight Java MQTT broker