Bug 2482215 (CVE-2026-44839)

Summary: CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: eglynn, jjoyce, jpretori, jschluet, lhh, mburns, mgarciac
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in RabbitMQ, a messaging and streaming broker. Unsanitized virtual host names allow for XSS in the the management UI pages that list virtual hosts if the attacker manages to find a way to force a virtual host to restart. This vulnerability requires high privileges and user interaction, potentially leading to a low impact on confidentiality and integrity.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2489780    
Bug Blocks:    

Description OSIDB Bzimport 2026-05-27 16:02:25 UTC
RabbitMQ is a messaging and streaming broker. From 3.7.0 to before 4.1.2 and 4.0.13,  This vulnerability is fixed in 4.1.2 and 4.0.13.