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
Affected Vendors & Products
References
History
Fri, 25 Sep 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Moquette
Moquette moquette |
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| CPEs | cpe:2.3:a:moquette:moquette:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Moquette
Moquette moquette |
|
| Metrics |
cvssV3_1
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Wed, 23 Sep 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 23 Sep 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Moquette-io
Moquette-io moquette |
|
| Vendors & Products |
Moquette-io
Moquette-io moquette |
Wed, 23 Sep 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Moquette malformed shared subscriptions can crash command processing | |
| Weaknesses | CWE-20 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-23T16:29:44.588Z
Updated: 2026-09-23T17:58:06.940Z
Reserved: 2026-09-22T16:39:45.793Z
Link: CVE-2026-95843
Updated: 2026-09-23T17:58:03.477Z
Status : Analyzed
Published: 2026-09-23T17:17:21.130
Modified: 2026-09-25T13:34:44.800
Link: CVE-2026-95843
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