CVE-2026-95845

Moquette 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.

• CWE-770

• https://github.com/moquette-io/moquette/commit/2482cadfba44e615be704b892009a57ce06a1aba
• https://github.com/moquette-io/moquette/releases/tag/v0.18.1
• https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq

Published

Sep 23, 2026

Last Modified

Sep 23, 2026

Status

Undergoing Analysis

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