CVE-2026-85724 (GCVE-0-2026-85724)

Vulnerability from cvelistv5 – Published: 2026-09-23 16:29 – Updated: 2026-09-23 16:29
VLAI
Title
Moquette pattern ACL wildcard injection allows cross-tenant authorization bypass
Summary
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when pattern-based ACL rules are configured, AuthorizationsCollector.canDoOperation substitutes client ID and username values directly into rules containing %c or %u and then treats the result as an MQTT topic filter. A client that uses + or # in either identity can broaden the substituted filter and gain cross-tenant read and write access. A # identity can also produce an invalid filter that triggers a NullPointerException in Topic.match and disrupts session processing. This issue is fixed in version 0.18.1.
Severity
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-155 - Improper Neutralization of Wildcards or Matching Symbols
Assigner
References
Impacted products
Vendor Product Version CPE status
moquette-io moquette Affected: < 0.18.1
guessed Create a notification for this product.
Show details on NVD website
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    "dateReserved": "2026-09-04T14:45:10.648Z",
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          }
        ],
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        "lastModified": "2026-09-23T18:12:04.247",
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  }
}



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