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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.

PUBLISHED Reserved 2026-06-24 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Problem types

CWE-862: Missing Authorization

Product status

>= 4.2.0, < 4.2.6
affected

>= 4.1.0, < 4.1.11
affected

>= 4.0.0, < 4.0.21
affected

>= 3.13.0, < 3.13.15
affected

References

github.com/...server/security/advisories/GHSA-9q2j-2hq8-22r2 exploit

github.com/...server/security/advisories/GHSA-9q2j-2hq8-22r2

github.com/rabbitmq/rabbitmq-server/pull/16085

github.com/rabbitmq/rabbitmq-server/pull/16090

github.com/...ommit/709a14e49e06c138a8cd672c9809ca34a2767962

github.com/...ommit/dc3d1aa4f5c3331a425ee599b45be9423a2e83fc

github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6

cve.org (CVE-2026-57221)

nvd.nist.gov (CVE-2026-57221)

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