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Medium severity · published Jul 10, 2026
CVE-2026-57213
RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering
4.8
CVSS
0.3%
EPSS
No
On KEV
Description
RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmq_federation_management plugin renders the consumer_tag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute JavaScript in the browser of a user viewing that page. This issue is fixed in versions 3.13.14, 4.0.19, 4.1.10, and 4.2.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
rabbitmq-server · rabbitmq
>= 4.2.0, < 4.2.5; >= 4.1.0, < 4.1.10; >= 4.0.0, < 4.0.19; >= 3.13.0, < 3.13.14 · source: vendor
RS
Rabbitmq Server · Broadcom
3.13.0 before 4.2.5 · source: NVD
Affected product
RA
rabbitmq-server
rabbitmq
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-57213
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-57213
Patch
https://github.com/rabbitmq/rabbitmq-server/commit/33dedfe4fd53ff009cc67ab36358d0624c6b2e53
Patch
https://github.com/rabbitmq/rabbitmq-server/commit/c2d0d69edf01efbd6e87dfb250c373a32da957f8
Issue Tracking
https://github.com/rabbitmq/rabbitmq-server/pull/15708
Issue Tracking
https://github.com/rabbitmq/rabbitmq-server/pull/15711
Release Notes
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5
Exploit
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-qxrp-7cmp-p77h
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