Authorization bypass through user-controlled key in Roxy-WI - CVE-2026-45550
Published: May 16, 2026
Vulnerability identifier: #VU131607
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-45550
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Roxy-WI
Affected software:
Roxy-WI
Roxy-WI
Detailed vulnerability description
The vulnerability allows a remote user to modify monitoring checks across tenant boundaries.
The vulnerability exists due to incorrect authorization in the PUT /smon/check endpoint and downstream smon update functions when handling update requests with a user-controlled check_id. A remote user can send a specially crafted PUT request with another tenant's check_id to modify monitoring checks across tenant boundaries.
The issue affects HTTP, TCP, Ping, and DNS monitoring checks, and no user interaction is required.
How to mitigate CVE-2026-45550
Install security update from vendor's website.