CVE-2026-95843 Details
Description
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/moquette-io/moquette/commit/affdc71fdba92dc020421678970ae70518fb6da2 | [email protected] | Patch |
| https://github.com/moquette-io/moquette/pull/962 | [email protected] | Patch |
| https://github.com/moquette-io/moquette/releases/tag/v0.18.1 | [email protected] | Release Notes |
| https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| moquette moquette | < 0.18.1 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 25, 2026 | Initial Analysis | [email protected] |
| Sep 23, 2026 | CVE Modified | CISA-ADP |
| Sep 23, 2026 | New CVE Received | [email protected] |