Unrated severityNVD Advisory· Published Jul 18, 2026
Debian rabbitmq-server: RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, …
CVE-2026-57221
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.
Affected products
2- Range: <3.13.15, <4.0.20, <4.1.11, <4.2.6
- Range: <3.13.15, <4.0.20, <4.1.11, <4.2.6
Patches
Vulnerability mechanics
News mentions
2- RabbitMQ Flaws Could Leak OAuth Secrets and Expose Cross-Tenant Queue MetadataThe Hacker News · Jul 14, 2026
- RabbitMQ Vulnerability Threatens Enterprise SystemsSecurityWeek · Jul 13, 2026