CVE-2026-67412 RabbitMQ - Broken Access Control

RabbitMQ 3.13.0 to 4.3.3, 4.2.9, 4.1.14, 4.0.24, and 3.13.18 contains a broken access control vulnerability caused by Federation upstream skipping vhost authorization, letting policymakers on one vhost read and drain messages from another vhost without permission, exploit requires policymaker privileges on a vhost.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to versions 4.3.3, 4.2.9, 4.1.14, 4.0.24, or 3.13.18 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

← All CVEs