CVE-2026-33431

Medium

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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductRoxy-wi
PublishedApr 20, 2026
First seenApr 20, 2026
Weakness typeCWE-24CWE-24

How to fix

Update
  • roxy-wi roxy-wi8.2.6.4 or later

Affected products

ProductAffected versionsFixed in
roxy-wi roxy-wiv < 8.2.6.48.2.6.4

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-33431 · Roxy-wi · Dark Radar