CVE-2026-95843High· 8.7▾ MidnightPoC availableMoquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.subscribe parses a shared-subscription filter through SharedSubscriptionUtils.extractShareName before validating the complete $share/{shareName}/{topicFilter} struct…
▾ 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.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.subscribe parses a shared-subscription filter through SharedSubscriptionUtils.extractShareName before validating the complete $share/{shareName}/{topicFilter} structure. A remote client can send a filter such as $share/grp without a topic-filter portion, causing a StringIndexOutOfBoundsException while calculating the share name. The exception terminates command handling on the shared session event loop and can deny service to other client sessions assigned to that loop. This issue is fixed in version 0.18.1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
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-2026-95842High· 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