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CVE-2026-27811— Roxy-WI has a Command Injection via diff parameter in config comparison allows authenticated RCE

Quick assessment

Affected
roxy-wi roxy-wi
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Roxy-WI是Roxy-WI开源的一款用于管理 Haproxy、Nginx 和 Keepalived 服务器的 Web 界面。 Roxy-WI 8.2.6.3之前版本存在操作系统命令注入漏洞，该漏洞源于/config/compare/<service>/<server_ip>/show端点存在命令注入，可能导致执行任意系统命令。

CVSS 8.8 · High EPSS 3.02% · P87
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I. Basic Information for CVE-2026-27811

Vulnerability Information
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Vulnerability Title
Roxy-WI has a Command Injection via diff parameter in config comparison allows authenticated RCE
Source: CVE Program / CVE List V5
Vulnerability Description
Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.3, a command injection vulnerability exists in the `/config/compare/<service>/<server_ip>/show` endpoint, allowed authenticated users to execute arbitrary system commands on the app host. The vulnerability exists in `app/modules/config/config.py` on line 362, where user input is directly formatted in the template string that is eventually executed. Version 8.2.6.3 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Roxy-WI 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Roxy-WI是Roxy-WI开源的一款用于管理 Haproxy、Nginx 和 Keepalived 服务器的 Web 界面。 Roxy-WI 8.2.6.3之前版本存在操作系统命令注入漏洞，该漏洞源于/config/compare/<service>/<server_ip>/show端点存在命令注入，可能导致执行任意系统命令。
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
roxy-wi roxy-wi < 8.2.6.3 -

II. Public POCs for CVE-2026-27811

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9350 chars
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III. Intelligence Information for CVE-2026-27811

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Patches & Fixes for CVE-2026-27811 (1)

Vendor Advisories for CVE-2026-27811 (1)

Vendor Pages for CVE-2026-27811 (1)

IV. Related Vulnerabilities

Same product: roxy-wi
Same vendor: roxy-wi
Same weakness: CWE-77

V. Comments for CVE-2026-27811

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