CVE-2026-57218

EUVD-2026-43020
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/rabbitmq/rabbitmq-server/commit/501ad947cd6bbcc9486fe96e0d073992bfe52cc4
https://github.com/rabbitmq/rabbitmq-server/commit/db20d6c0fcf3056030f244b5adab0d45c0db0c9e
https://github.com/rabbitmq/rabbitmq-server/pull/16092
https://github.com/rabbitmq/rabbitmq-server/pull/16097
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-wmrr-4h5v-5ch7