23 Oct 2026 15:48:27 UTC
Moquette unbounded per-session message queues allow memory exhaustion
cve-program · CVE-2026-95845 · Published
CVE-2026-95845
Moquette unbounded per-session message queues allow memory exhaustion
CVSS 4.0 8.7 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-95845
PublishedMoquette is a lightweight Java MQTT broker. Prior to 0.18.1, the broker does not enforce a maximum length for pending per-session message queues. When a fast publisher sends messages to a slow subscriber whose in-flight window is full, queued messages can accumulate without bound in memory or persistent storage. Remote clients can use this condition to exhaust broker resources and cause a denial of service. This issue is fixed in version 0.18.1.
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