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Vulnerability Detail

CVE-2026-85724 Verified Sceawere Triage Sources: NVD / CISA KEV

Vulnerability Metadata

Severity
Critical
Score / CVSS
9.6
Creation Date
3h ago
Vendor
moquette-io
Product
moquette
Attack Type
CWE-863: Incorrect Authorization
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack Complexity
LOW

Narrative and Response

Description

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.

Executive Summary

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Technical Details

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Mitigations

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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References

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Additional Metadata

{
  "score": "9.6",
  "pubDate": "2026-09-23T17:17:17.623Z",
  "pubdate": "2026-09-23T17:17:17.623Z"
}
CVE-2026-85724: CVE-2026-85724 Vulnerability (CRITICAL Severity, CVSS: 9.6) | Sceawere