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CVE-2026-85058

Moquette: Missing Authorization in io.moquette:moquette-broker PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
moquette-io / moquetteaffected < 0.18.1

CWE

CWE-862

References

ADP enrichment

CISA-ADP

No English description supplied.