What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% 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-601

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

• roxy-wi: through 8.2.6.4

References

• https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-xw9x-68gg-mp5h
• https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-xw9x-68gg-mp5h

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