CVE-2026-57221
Medium
Description
RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, RabbitMQ does not perform authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations, allowing any authenticated user who can connect to a virtual host to enumerate queue and exchange names and read queue message and consumer counts. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
SeverityMedium
CVSS5.0
Exploit probability—
Product
Broadcom Rabbitmq Server
PublishedJul 10, 2026
First seenJul 10, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- broadcom rabbitmq_server4.2.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| broadcom rabbitmq_server | 3.13.0 ≤ v < 4.2.6 | 4.2.6 |
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