Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Moquette | Moquette | < 0.18.1 |
Related Weaknesses (CWE)
References
- https://github.com/moquette-io/moquette/commit/ca17e0be19e86d5e291f4532dfdc94616Patch
- https://github.com/moquette-io/moquette/releases/tag/v0.18.1Release Notes
- https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhqExploitMitigationVendor Advisory
- https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhqExploitMitigationVendor Advisory
FAQ
What is CVE-2026-95844?
CVE-2026-95844 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 op...
How severe is CVE-2026-95844?
CVE-2026-95844 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-95844?
Check the references section above for vendor advisories and patch information. Affected products include: Moquette Moquette.