Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M
CVE-2026-45566Roxy-WI: Open redirect on /login?next= via basic-auth userinfo syntax bypass
Medium 6.1
In plain English
A medium-severity open redirect in roxy-wi from roxy-wi. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-xw9x-68gg-mp5h x_refsource_CONFIRM