What’s Vulnerable › Vulnerabilities

CVE-2026-45564: Roxy-WI: Authenticated RCE via 'configver' URL parameter (os.system sink in /config/versions/.../save)

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-10 · updated 2026-06-17
• Weakness: CWE-78

Description

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, POST /config/versions/<service>/<server_ip>/<configver>/save interpolates the URL-path configver parameter directly into a config-version path that ends up at os.system(f"dos2unix -q {cfg}"). configver is not run through EscapedString (Pydantic doesn't validate path segments declared as str) and the surrounding .. block is the broken tuple-membership patch from GHSA-vapt-004. An authenticated user with role <= 3 ("user") therefore reaches a bin/sh -c command-injection sink. At time of publication, there are no publicly available patches.

Affected products

• roxy-wi: through 8.2.6.4

References

• https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w42x-3v8j-cmg2
• https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w42x-3v8j-cmg2

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