CVE-2026-85058

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, PostOffice.publishWill publishes a client-controlled Last Will message through publish2Subscribers without invoking the authorizator.canWrite check used by normal PUBLISH paths. When anonymous access is enabled and topic ACLs restrict writes, a remote client can set an ACL-protected topic as the Last Will Topic during CONNECT and perform an abnormal client disconnect, causing the broker to inject attacker-controlled messages into a topic for which the client lacks write permission. This issue is fixed in version 0.18.1.
Configurations

No configuration.

History

22 Sep 2026, 16:18

Type Values Removed Values Added
References () https://github.com/moquette-io/moquette/security/advisories/GHSA-9jjc-fw8x-fmwx - () https://github.com/moquette-io/moquette/security/advisories/GHSA-9jjc-fw8x-fmwx -

18 Sep 2026, 18:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-18 18:17

Updated : 2026-09-24 21:25


NVD link : CVE-2026-85058

Mitre link : CVE-2026-85058

CVE.ORG link : CVE-2026-85058


JSON object : View

Products Affected

No product.

CWE
CWE-862

Missing Authorization