CVE-2026-57221: CWE-862: Missing Authorization in rabbitmq rabbitmq-server
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-57221) in rabbitmq-server involves missing authorization checks on passive queue.declare and exchange.declare operations in AMQP 0-9-1 protocol. Authenticated users with access to a virtual host can enumerate queue and exchange names and obtain queue message and consumer counts without proper authorization. The flaw affects versions prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6. The issue is addressed by adding authorization checks in these fixed versions.
Potential Impact
Authenticated users who can connect to a virtual host on affected RabbitMQ servers can enumerate internal queue and exchange names and read message and consumer counts. This information disclosure could aid in further reconnaissance but does not directly allow message manipulation or denial of service. The CVSS 4.0 score is 5.3 (medium severity), reflecting limited impact with low complexity and no user interaction required.
Mitigation Recommendations
Upgrade rabbitmq-server to version 3.13.15, 4.0.20, 4.1.11, or 4.2.6 or later, where the authorization checks for passive queue.declare and exchange.declare operations are implemented. No other mitigation is indicated. Patch status is confirmed fixed in these versions.
CVE-2026-57221: CWE-862: Missing Authorization in rabbitmq rabbitmq-server
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.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/rabbitmq/rabbitmq-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-57221) in rabbitmq-server involves missing authorization checks on passive queue.declare and exchange.declare operations in AMQP 0-9-1 protocol. Authenticated users with access to a virtual host can enumerate queue and exchange names and obtain queue message and consumer counts without proper authorization. The flaw affects versions prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6. The issue is addressed by adding authorization checks in these fixed versions.
Potential Impact
Authenticated users who can connect to a virtual host on affected RabbitMQ servers can enumerate internal queue and exchange names and read message and consumer counts. This information disclosure could aid in further reconnaissance but does not directly allow message manipulation or denial of service. The CVSS 4.0 score is 5.3 (medium severity), reflecting limited impact with low complexity and no user interaction required.
Mitigation Recommendations
Upgrade rabbitmq-server to version 3.13.15, 4.0.20, 4.1.11, or 4.2.6 or later, where the authorization checks for passive queue.declare and exchange.declare operations are implemented. No other mitigation is indicated. Patch status is confirmed fixed in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-24T02:21:33.810Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a515a8d68715ace432d8363
Added to database: 07/10/2026, 20:48:13 UTC
Last enriched: 07/18/2026, 15:30:28 UTC
Last updated: 08/23/2026, 22:52:12 UTC
Views: 180
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