CVE-2026-57221: 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…

PriorityP429medium5CVSS 3.1

AVNACLPRLUINSCCLINAN

EPSS

0.27%

19.1th percentile

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

5 ranges

Vendor	Product	Version range	Fixed in
broadcom	rabbitmq_server	>= 3.13.0 < 4.2.6	4.2.6
rabbitmq	rabbitmq-server	—	—
rabbitmq	rabbitmq-server	—	—
rabbitmq	rabbitmq-server	—	—
rabbitmq	rabbitmq-server	—	—

CVSS provenance

nvdv3.15.0MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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