CVE-2026-95844: Moquette

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1.

Affected products

• Moquette Moquette: before 0.18.1 (fixed in 0.18.1)

Published 2026-09-23. Last modified 2026-09-29.