CVE-2026-95846
highMoquette is a lightweight Java MQTT broker.
Vendor / product: Moquette — moquette
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.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-23 17:17
Modified: 2026-09-25 13:34
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 06:55 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
moquette / moquette <0.18.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/moquette-io/moquette/commit/f5a323fe782d1505c0097498cb22eb6ec6c96973
Patch / mitigation: https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq
Patch / mitigation: https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq
References
- https://github.com/moquette-io/moquette/commit/f5a323fe782d1505c0097498cb22eb6ec6c96973 security-advisories@github.com
- https://github.com/moquette-io/moquette/releases/tag/v0.18.1 security-advisories@github.com
- https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq security-advisories@github.com
- https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:55 UTC · record ↗