CVE-2026-45566 MEDIUM

CVE-2026-45566: Roxy-WI: Open redirect on /login?next= via basic-auth userinfo syntax bypass

Vendor Roxy-Wi
Product roxy-wi
Weakness CWE-601 · Open redirect
Published June 10, 2026
Last update June 10, 2026

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, the login flow allow-lists next URLs by rejecting strings containing https:// or http:// substrings, then constructs https://{request.host}{next_url} and the JS client redirects via window.location.replace(). The block does not consider the userinfo@host syntax. next=@evil.example/path produces https://victim.example@evil.example/path, which all modern browsers route to evil.example. At time of publication, there are no publicly available patches.

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated