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

Quick assessment

Affected
roxy-wi roxy-wi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Roxy-WI是Roxy-WI开源的一款用于管理 Haproxy、Nginx 和 Keepalived 服务器的 Web 界面。 Roxy-WI 8.2.6.4及之前版本存在输入验证错误漏洞，该漏洞源于登录流程的next URL验证未考虑userinfo@host语法，可能导致攻击者重定向到恶意站点。

CVSS 6.1 · Medium EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
roxy-wi roxy-wi <= 8.2.6.4 affected
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I. Basic Information for CVE-2026-45566

Vulnerability Information
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Vulnerability Title
Roxy-WI: Open redirect on /login?next= via basic-auth userinfo syntax bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Roxy-WI 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Roxy-WI是Roxy-WI开源的一款用于管理 Haproxy、Nginx 和 Keepalived 服务器的 Web 界面。 Roxy-WI 8.2.6.4及之前版本存在输入验证错误漏洞，该漏洞源于登录流程的next URL验证未考虑userinfo@host语法，可能导致攻击者重定向到恶意站点。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
roxy-wi roxy-wi <= 8.2.6.4 -

II. Public POCs for CVE-2026-45566

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III. Intelligence Information for CVE-2026-45566

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Vendor Advisories for CVE-2026-45566 (1)

Same Patch Batch · roxy-wi · 2026-06-10 · 14 CVEs total

CVE-2026-45556 9.9 CRITICAL Roxy-WI: Authenticated arbitrary file write on every managed load balancer (and downstream
CVE-2026-45558 9.9 CRITICAL Roxy-WI: Authenticated RCE on every managed HAProxy load balancer via `option` field confi
CVE-2026-45552 9.9 CRITICAL Roxy-WI: Cross-tenant authorization bypass on /install/* — guest can run Ansible / SSH on
CVE-2026-45550 9.1 CRITICAL Roxy-WI: IDOR on PUT /smon/check — any user can rewrite any tenant's monitoring URL/IP/bod
CVE-2026-45564 8.8 HIGH Roxy-WI: Authenticated RCE via 'configver' URL parameter (os.system sink in /config/versio
CVE-2026-45549 8.5 HIGH Roxy-WI: Authorization bypass on POST /smon/agent/action/<action> — guest can stop or rest
CVE-2026-45567 8.3 HIGH Roxy-WI: Authentication bypass via 'api' substring in URL + unauthenticated /api/gpt
CVE-2026-45569 8.1 HIGH Roxy-WI: Path-traversal patch in commit d4d10006 is a no-op (tuple-membership bug)
CVE-2026-45565 8.1 HIGH Roxy-WI: EscapedString validator skips its '..' block when stripping (root cause for sever
CVE-2026-45561 6.5 MEDIUM Roxy-WI: SSRF in /smon/agent/<endpoint>/<server_ip> reachable to cloud metadata IPs
CVE-2026-45560 6.1 MEDIUM Roxy-WI: Stored XSS in log viewer (wrap_line/highlight_word produce unescaped HTML)
CVE-2026-45559 4.9 MEDIUM Roxy-WI: LDAP injection in /user/ldap/<username> (admin-only)
CVE-2026-45563 4.3 MEDIUM Roxy-WI: IDOR — any authenticated user can read another user's full action history

IV. Related Vulnerabilities

Same product: roxy-wi
Same vendor: roxy-wi
Same weakness: CWE-601

V. Comments for CVE-2026-45566

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