CVE-2026-57221: CWE-862: Missing Authorization in rabbitmq rabbitmq-server
RabbitMQ versions prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6 do not perform authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations. This allows any authenticated user connected to a virtual host to enumerate queue and exchange names and read queue message and consumer counts. The issue is fixed in the specified versions.
AI Analysis
Technical Summary
CVE-2026-57221 is a missing authorization vulnerability (CWE-862) in rabbitmq-server affecting versions before 3.13.15, 4.0.20, 4.1.11, and 4.2.6. The vulnerability allows any authenticated user who can connect to a virtual host to bypass authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations. This enables enumeration of queue and exchange names and reading of queue message and consumer counts. The vulnerability is addressed in the fixed versions listed.
Potential Impact
An authenticated user with access to a virtual host can enumerate queue and exchange names and obtain queue message and consumer counts without proper authorization. This information disclosure could aid an attacker in understanding the messaging infrastructure but does not directly allow message manipulation or denial of service.
Mitigation Recommendations
Upgrade rabbitmq-server to version 3.13.15, 4.0.20, 4.1.11, or 4.2.6 or later where this authorization issue is fixed. Patch status is confirmed by the vendor advisory indicating these versions contain the fix.
CVE-2026-57221: CWE-862: Missing Authorization in rabbitmq rabbitmq-server
Description
RabbitMQ versions prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6 do not perform authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations. This allows any authenticated user connected to a virtual host to enumerate queue and exchange names and read queue message and consumer counts. The issue is fixed in the specified versions.
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
CVE-2026-57221 is a missing authorization vulnerability (CWE-862) in rabbitmq-server affecting versions before 3.13.15, 4.0.20, 4.1.11, and 4.2.6. The vulnerability allows any authenticated user who can connect to a virtual host to bypass authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations. This enables enumeration of queue and exchange names and reading of queue message and consumer counts. The vulnerability is addressed in the fixed versions listed.
Potential Impact
An authenticated user with access to a virtual host can enumerate queue and exchange names and obtain queue message and consumer counts without proper authorization. This information disclosure could aid an attacker in understanding the messaging infrastructure but does not directly allow message manipulation or denial of service.
Mitigation Recommendations
Upgrade rabbitmq-server to version 3.13.15, 4.0.20, 4.1.11, or 4.2.6 or later where this authorization issue is fixed. Patch status is confirmed by the vendor advisory indicating these versions contain the fix.
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: 07/10/2026, 21:03:17 UTC
Last updated: 07/10/2026, 21:38:58 UTC
Views: 4
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