CVE-2026-44839 PUBLISHED

RabbitMQ: Unsanitized vhost names allow for XSS in management UI

Assigner: GitHub_M
Reserved: 07.05.2026 Published: 27.05.2026 Updated: 27.05.2026

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: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	Active

CVSS 4.0

Vendor	rabbitmq
Product	rabbitmq-server
Versions	Version >= 3.7.0, < 4.0.13 is affected Version >= 4.1.0-alpha, < 4.1.2 is affected

CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) CWE