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CVE-2026-33431— Roxy-WI Vulnerable to Authenticated Arbitrary File Read via Path Traversal in Config Version Viewer

Quick assessment

Affected
roxy-wi roxy-wi
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.

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 8.2.6.4之前版本存在安全漏洞，该漏洞源于POST /config/<service>/show API端点中configver参数存在路径遍历问题，可能导致读取任意文件。

AI Predicted 8.1 Difficulty: Easy EPSS 0.49% · P40
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I. Basic Information for CVE-2026-33431

Vulnerability Information
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Vulnerability Title
Roxy-WI Vulnerable to Authenticated Arbitrary File Read via Path Traversal in Config Version Viewer
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 8.2.6.4, the POST /config/<service>/show API endpoint accepts a configver parameter that is directly appended to a base directory path to construct a local file path, which is subsequently opened and its contents returned to the caller. The existing path traversal guard only inspects the base directory variable (which is never user-controlled) and entirely ignores the user-supplied configver value. An authenticated attacker can supply a configver value containing `../` sequences to escape the intended directory and read arbitrary files accessible to the web application process. Version 8.2.6.4 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’../filedir’
Source: CVE Program / CVE List V5
Vulnerability Title
Roxy-WI 安全漏洞
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 8.2.6.4之前版本存在安全漏洞，该漏洞源于POST /config/<service>/show API端点中configver参数存在路径遍历问题，可能导致读取任意文件。
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 < 8.2.6.4 -

II. Public POCs for CVE-2026-33431

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III. Intelligence Information for CVE-2026-33431

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Vendor Advisories for CVE-2026-33431 (1)

IV. Related Vulnerabilities

Same product: roxy-wi
Same vendor: roxy-wi
Same weakness: CWE-24

V. Comments for CVE-2026-33431

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