Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. 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 |
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| Metrics |
cvssV3_1
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Thu, 24 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 23 Sep 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Moquette-io
Moquette-io moquette |
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| 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.publishWill publishes a client's Last-Will message without applying the canWrite authorization and reserved-topic checks used for a normal PUBLISH. A client can configure a Will for a topic that the client is not permitted to write and cause the broker to publish the unauthorized message when the client disconnects unexpectedly. This issue allows unauthorized message injection into restricted topics. This issue is fixed in version 0.18.1. | |
| Title | Moquette publishes Last-Will messages without enforcing write authorization | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-23T16:29:54.130Z
Updated: 2026-09-24T14:21:44.180Z
Reserved: 2026-09-22T16:39:45.793Z
Link: CVE-2026-95846
Updated: 2026-09-24T14:21:20.423Z
Status : Analyzed
Published: 2026-09-23T17:17:21.627
Modified: 2026-09-25T13:34:02.580
Link: CVE-2026-95846
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