CVE-2026-57221
RabbitMQ: Passive queue/exchange declaration bypasses authorization checks, leaking queue metadata to unprivileged users
CVSS Score
0.0
EPSS Score
0.3%
EPSS Percentile
19th
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.
| CWE | CWE-862 |
| Vendor | rabbitmq |
| Product | rabbitmq-server |
| Published | Jul 10, 2026 |
| Last Updated | Jul 13, 2026 |
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Affected Versions
rabbitmq / rabbitmq-server
>= 4.2.0, < 4.2.6 >= 4.1.0, < 4.1.11 >= 4.0.0, < 4.0.21 >= 3.13.0, < 3.13.15
References
github.com: https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-9q2j-2hq8-22r2 github.com: https://github.com/rabbitmq/rabbitmq-server/pull/16085 github.com: https://github.com/rabbitmq/rabbitmq-server/pull/16090 github.com: https://github.com/rabbitmq/rabbitmq-server/commit/709a14e49e06c138a8cd672c9809ca34a2767962 github.com: https://github.com/rabbitmq/rabbitmq-server/commit/dc3d1aa4f5c3331a425ee599b45be9423a2e83fc github.com: https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6