Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, the HAProxy section-save endpoints (POST /api/service/haproxy/<server_id>/section/<section_type> and the PUT / global / defaults variants) accept a JSON option field that is not validated, not escaped, and is rendered verbatim into the generated HAProxy configuration via the section.j2, global.j2, and defaults.j2 Ansible templates. Because Roxy-WI then pushes the generated config to the load balancer and runs systemctl reload haproxy, an authenticated user with role ≤ 3 (user) can inject arbitrary HAProxy directives into the config that runs on every load balancer their group manages — including option external-check + external-check command /bin/bash -c '…', which gives remote code execution on the load balancer as the haproxy user on every health-check tick. At time of publication, there are no publicly available patches.
References
Configurations
No configuration.
History
10 Jun 2026, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w2x4-66jj-3597 - |
10 Jun 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-10 15:16
Updated : 2026-06-10 19:37
NVD link : CVE-2026-45558
Mitre link : CVE-2026-45558
CVE.ORG link : CVE-2026-45558
JSON object : View
Products Affected
No product.