Advisory record · GHSA-5f42-97gr-vfhq

Moquette: Pattern-ACL wildcard injection (cross-tenant authorization bypass) plus a remote-unauthenticated DoS cluster, a Will-message authorization bypass, and a cross-session durable-corruption bug

CVSS 8.7 HighEPSS 0.0044 · 38th percentile

Published by the GitHub Advisory Database at 23 Sept 2026, 16:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.moquette:moquette-brokerMaven<0.18.10.18.1
Identifiers
GHSA-5f42-97gr-vfhq · CVE-2026-85724 · CVE-2026-95842 · CVE-2026-95843 · CVE-2026-95844 · CVE-2026-95845 · CVE-2026-95846 · CVE-2026-95847 · CVE-2026-95848
Weakness (CWE)
CWE-20 · CWE-99 · CWE-155 · CWE-248 · CWE-636 · CWE-674 · CWE-770 · CWE-862 · CWE-863
Published
23 Sept 2026
Updated
19 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Moquette broker (io.moquette:moquette-broker) versions before 0.18.1 are affected. Any connecting MQTT client can bypass pattern-based ACL rules across tenants when those rules are configured, crash the broker with malformed subscriptions, or publish Last-Will messages without authorization. Upgrade to 0.18.1.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0044, the 38th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.