CVSS 4.0
8.7 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVE-2026-95842
High (8.7) in moquette moquette. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in io.moquette:moquette-broker 0.18.1.
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, SessionEventLoop.run catches only InterruptedException, and SessionEventLoopGroup does not restart a terminated loop. An MQTT command that raises an uncaught exception can terminate an event loop shared by multiple client sessions, preventing every co-located client from processing PUBLISH, SUBSCRIBE, PUBACK, and other commands. An attacker can select client IDs that map across the available loops to disrupt session processing for the entire broker. This issue is fixed in version 0.18.1.
Severity
CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWE
- CWE-248
- Published
- Modified
- Record from
- the NVD, synced
Affected
- moquette:moquette
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5f42-97gr-vfhq | Maven | io.moquette:moquette-broker | <0.18.1 | 0.18.1 |
References
- https://github.com/moquette-io/moquette/commit/86feb7c31e6fac849c465d8079d08c0e7ef01cdf
- https://github.com/moquette-io/moquette/pull/957
- https://github.com/moquette-io/moquette/releases/tag/v0.18.1
- https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq
- https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq