CVE-2026-95846 Moquette - Broken Access Control

Moquette < 0.18.1 contains a broken access control vulnerability caused by PostOffice.publishWill publishing Last-Will messages without authorization checks, letting attackers inject unauthorized messages on restricted topics, exploit requires client to configure a Will.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.27% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
23 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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