CVE-2026-44839

RabbitMQ: Unsanitized vhost names allow for XSS in management UI

Published: May 27, 2026Updated: Jun 4, 2026 Sources: CVE List NVDCWE-80

NVD MITRE

4.8CVSSMEDIUM

Description

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.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:HPrivileges Required

High

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-80

Affected Products

rabbitmq server broadcom

Mixed

Cloud & SaaS / virtualization

rabbitmq-server rabbitmq

On-prem

Databases / cache-message-queue

broadcomcommercialUSCloud & SaaSaka broadcom inc

rabbitmqoss-projectGBDatabasesaka rabbitmq-server, rabbitmq

Exploitability

Official Patch Available

References

https://github.com/rabbitmq/rabbitmq-server/commit/7f54319279d1ece161ae0b4cdc6f0e58a4045eb5

github.com

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-fh5r-jpm3-fjwp

github.com

Timeline

Published

May 27, 2026

Last Updated

Jun 4, 2026

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