Vulnerability · Published Mar 17, 2026 · Assigned by GitHub_M

CVE-2026-27811Roxy-WI has a Command Injection via diff parameter in config comparison allows authenticated RCE

High 8.8

In plain English

A high-severity command injection in roxy-wi from roxy-wi. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)2.1%top 18.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.3, a command injection vulnerability exists in the `/config/compare/<service>/<server_ip>/show` endpoint, allowed authenticated users to execute arbitrary system commands on the app host. The vulnerability exists in `app/modules/config/config.py` on line 362, where user input is directly formatted in the template string that is eventually executed. Version 8.2.6.3 fixes the issue.

Affected products (as reported)

Vendor	Product	Versions
roxy-wi	roxy-wi	< 8.2.6.3

Weakness: CWE-77, CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-jvmv-cw47-jh77 x_refsource_CONFIRM
https://github.com/roxy-wi/roxy-wi/commit/a10ac7306c252014f97a7213db4a9470300fa064 x_refsource_MISC
https://github.com/roxy-wi/roxy-wi/releases/tag/v8.2.6.3 x_refsource_MISC