CVE-2026-57218
MEDIUMRabbitMQ AMQP 0-9-1 < 4.2.6 - Post-Revocation Message Disclosure
Title source: manualDescription
RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, RabbitMQ AMQP 0-9-1 allows an existing consumer to keep receiving messages after OAuth token expiry or connection.update_secret refresh to reduced scopes because existing consumers are not canceled or reauthorized at delivery time after the channel user state changes. This issue is fixed in version 4.2.6.
References (6)
Core 6
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-wmrr-4h5v-5ch7
X_Refsource_Misc x_refsource_misc
https://github.com/rabbitmq/rabbitmq-server/commit/501ad947cd6bbcc9486fe96e0d073992bfe52cc4
X_Refsource_Misc x_refsource_misc
https://github.com/rabbitmq/rabbitmq-server/commit/db20d6c0fcf3056030f244b5adab0d45c0db0c9e
X_Refsource_Misc x_refsource_misc
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
X_Refsource_Misc x_refsource_misc
https://github.com/rabbitmq/rabbitmq-server/pull/16092
X_Refsource_Misc x_refsource_misc
https://github.com/rabbitmq/rabbitmq-server/pull/16097
Scores
CVSS v3
6.5
EPSS
0.0027
EPSS Percentile
18.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (2)
broadcom/rabbitmq_server
4.2.0 - 4.2.6
rabbitmq/rabbitmq-server
>= 4.2.0, < 4.2.6
Published
Jul 10, 2026
Tracked Since
Jul 11, 2026