Vulnerability Details CVE-2026-57214
RabbitMQ is a messaging and streaming broker. Prior to 4.2.5, the RabbitMQ management UI renders the x-internal-purpose queue or exchange argument into an HTML title attribute without proper escaping on the Queues and Exchanges pages, allowing a user with permission to declare a queue or exchange to execute JavaScript in another user's browser. This issue is fixed in version 4.2.5.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 22.2%
CVSS Severity
CVSS v3 Score 5.4
References
- https://github.com/rabbitmq/rabbitmq-server/commit/b0027b6c1ae5b869d876e211efe6189ffd92b5c2
- https://github.com/rabbitmq/rabbitmq-server/commit/b267a290dd89e42c6e0256f46fc273a8adb7f3ec
- https://github.com/rabbitmq/rabbitmq-server/pull/15606
- https://github.com/rabbitmq/rabbitmq-server/pull/15608
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-6jfq-prw2-7rwp
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-6jfq-prw2-7rwp
Products affected by CVE-2026-57214
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.0
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.1
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.2
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.3
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cpe:2.3:a:broadcom:rabbitmq_server:4.2.4