# CVE-2026-45550: Roxy-WI IDOR in SMON monitoring check update

Source: https://junglewise.ai/threats/cve-2026-45550-roxy-wi-idor-in-smon-monitoring-check-update  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-10. Updated: 2026-06-10  
License: CC BY 4.0 with a link back

CVE-2026-45550 · Severity: critical · CVSS 9.1 · Published 2026-06-10

Roxy-WI, a management interface for popular web servers like HAProxy and Nginx, contains a security flaw in its monitoring component. An authenticated user can modify or redirect the monitoring checks belonging to other organizations or users. This allows an attacker to disable alerts for critical services or redirect monitoring traffic to capture sensitive information like API keys, potentially leading to undetected service outages.

Technologies: [Roxy-WI](https://junglewise.ai/threats/technologies/roxy-wi). Vendors: [Roxy-WI](https://junglewise.ai/threats/vendors/roxy-wi).

## Quick answers

**Is CVE-2026-45550 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45550 being exploited in the wild.

**How severe is CVE-2026-45550?** Critical severity, with a CVSS score of 9.1, published 10 June 2026.

**Which products and versions are affected?** Roxy-WI <= 8.2.6.4.

**Is there a fix for CVE-2026-45550?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-45550 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-45550?** Check whether you run Roxy-WI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An Insecure Direct Object Reference (IDOR) exists in the PUT /smon/check endpoint of Roxy-WI versions 8.2.6.4 and prior. While the application verifies that a user belongs to a group, it fails to verify that the specific 'check_id' being updated belongs to the user's group. The underlying SQL update functions in 'app/modules/db/smon.py' lack a 'user_group' filter in their WHERE clauses. An authenticated attacker can iterate through check IDs to silently rewrite HTTP, TCP, Ping, or DNS monitoring configurations for any tenant. This can be used to exfiltrate data via OAST, perform DoS amplification, or mask service outages. As of publication, no official patches are available.

## Affected products

- Roxy-WI Roxy-WI <= 8.2.6.4

## Timeline

- 2026-05-15: advisory: GitHub Security Advisory published
- 2026-06-10: disclosed: NVD publication date

## References

- [https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-856h-mvm2-2h2x](https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-856h-mvm2-2h2x)

## Related threats

- [Roxy-WI path traversal in configuration management](https://junglewise.ai/threats/cve-2026-45569-roxy-wi-path-traversal-in-configuration-management)
- [Roxy-WI authentication bypass via URL substring manipulation](https://junglewise.ai/threats/cve-2026-45567-roxy-wi-authentication-bypass-via-url-substring-manipulation)
- [Roxy-WI open redirect in login flow via userinfo syntax bypass](https://junglewise.ai/threats/cve-2026-45566-roxy-wi-open-redirect-in-login-flow-via-userinfo-syntax-bypass)
- [Roxy-WI input validation bypass in EscapedString validator](https://junglewise.ai/threats/cve-2026-45565-roxy-wi-input-validation-bypass-in-escapedstring-validator)
- [Roxy-WI command injection in config versions save route](https://junglewise.ai/threats/cve-2026-45564-roxy-wi-command-injection-in-config-versions-save-route)