CVE-2026-85058 Moquette - Broken Access Control

Moquette < 0.18.1 contains a broken access control vulnerability caused by missing authorization checks in Last Will message publishing, letting remote clients inject messages into ACL-protected topics, exploit requires anonymous access enabled.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-862

Vendor fix

Update to version 0.18.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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