CVE-2026-95847High· 7.5▾ MidnightPoC availableMoquette is a lightweight Java MQTT broker. Prior to 0.18.1, H2PersistentQueue derives a session's message-map name as queue_ plus the client ID and its metadata-map name as queue_ plus the client ID plus _meta. A durable session whose c…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 41.3 · likelihood 0.1 · 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.
Exploit-prediction probability, daily snapshots since Sep 25.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
8.8 → 7.5
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, H2PersistentQueue derives a session's message-map name as queue_ plus the client ID and its metadata-map name as queue_ plus the client ID plus _meta. A durable session whose client ID ends in _meta can therefore make its message map collide with another client's metadata map. The colliding sessions read and write the same H2 MVStore map with incompatible value types, which can corrupt queue head and tail data and cause message loss, misdelivery, failed queue reloads, or exposure of queued content across sessions. This issue is fixed in version 0.18.1.
moquette < 0.18.1Upgrade past the affected range:
moquette 0.18.1Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-95848Critical· 9.1Moquette is a lightweight Java MQTT broker
CVE-2026-95846High· 7.5Moquette is a lightweight Java MQTT broker
CVE-2026-95842High· 7.5Moquette is a lightweight Java MQTT broker
CVE-2026-95843High· 7.5Moquette is a lightweight Java MQTT broker
CVE-2026-95844High· 7.5Moquette is a lightweight Java MQTT broker
CVE-2026-85724Critical· 9.6Moquette is a lightweight Java MQTT broker