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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-07-10

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

Affected

• broadcom:rabbitmq_server

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

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