Vulnerability Details CVE-2026-61837
RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, AMQP 1.0 management GET /bindings exposes full binding topology to any authenticated AMQP user without resource/management permission checks. the AMQP 1.0 HTTP-over-AMQP management endpoint GET /bindings (the rabbitamqpmanagement handler) enumerates bindings between an arbitrary source exchange and destination queue/exchange in the caller's virtual host without performing any resource-level permission check. Unlike every sibling operation in the same module (which call checkresourceaccess / bindingchecks), the GET handler ignores the authenticated User and returns the binding list unchanged. As a result, any authenticated AMQP 1.0 client that can open a management link pair , including users with no management/monitoring/policymaker/administrator tag , can enumerate the complete binding topology (source exchanges, destination queues/exchanges, routing keys, and binding arguments) of the virtual host they can access. The equivalent HTTP management API (GET /api/bindings) Confidentiality impact: a non-management AMQP 1.0 user can enumerate the complete routing topology of any virtual host it can connect to , every (source exchange, destination queue/exchange, routing key, binding arguments) This issue is fixed in versions 4.3.3, 4.2.9, 4.1.14, and 4.0.23.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 14.8%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-61837
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.13
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.2
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.20
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.22
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.3
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.4
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.5
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.6
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.7
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.8
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cpe:2.3:a:broadcom:rabbitmq_server:4.0.9
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.11
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.2
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.3
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.4
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.5
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.6
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.7
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cpe:2.3:a:broadcom:rabbitmq_server:4.1.8
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cpe:2.3:a:broadcom:rabbitmq_server:4.3.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.3.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.3.2