CVEvulnerability
CVE-2026-85058
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-09-18
- Last modified
- 2026-09-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-862
Description
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.
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://github.com/moquette-io/moquette/commit/e23df019f6a11e22c7d2047d4f86d07095466c97 github.com
- https://github.com/moquette-io/moquette/commit/f5a323fe782d1505c0097498cb22eb6ec6c96973 github.com
- https://github.com/moquette-io/moquette/releases/tag/v0.18.1 github.com
- https://github.com/moquette-io/moquette/security/advisories/GHSA-9jjc-fw8x-fmwx github.com
- https://github.com/moquette-io/moquette/security/advisories/GHSA-9jjc-fw8x-fmwx github.com