CVE-2026-44839— RabbitMQ: Unsanitized vhost names allow for XSS in management UI
Quick assessment
Affected
rabbitmq rabbitmq-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
RabbitMQ是RabbitMQ开源的一个功能丰富的多协议消息和流媒体代理。 RabbitMQ 3.7.0至4.1.2之前版本和4.0.13之前版本存在安全漏洞，攻击者利用该漏洞可以执行跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| rabbitmq | rabbitmq-server | >= 3.7.0, < 4.0.13 |
affected |
>= 4.1.0-alpha, < 4.1.2 |
affected |
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I. Basic Information for CVE-2026-44839
Vulnerability Information
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Vulnerability Title
RabbitMQ: Unsanitized vhost names allow for XSS in management UI
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
RabbitMQ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RabbitMQ是RabbitMQ开源的一个功能丰富的多协议消息和流媒体代理。 RabbitMQ 3.7.0至4.1.2之前版本和4.0.13之前版本存在安全漏洞，攻击者利用该漏洞可以执行跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| rabbitmq | rabbitmq-server | >= 3.7.0, < 4.0.13 | - |
|
II. Public POCs for CVE-2026-44839
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-44839 (1)
IV. Related Vulnerabilities
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Same vendor: rabbitmq
-
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Same weakness: CWE-80
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V. Comments for CVE-2026-44839
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