High 8.8Published Mar 17, 2026

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

Updated under an hour ago (Oct 27, 2026, 10:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-77, CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

roxy-wi roxy-wi roxy_wi:roxy_wi (from the name)	before 8.2.6.3	CNA record
roxy-wi roxy-wi roxy-wi:roxy-wi	before 8.2.6.3	NVD

References

References

https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-jvmv-cw47-jh77	x-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/roxy-wi/roxy-wi/commit/a10ac7306c252014f97a7213db4a9470300fa064	x-refsource-misc, patch
https://github.com/roxy-wi/roxy-wi/releases/tag/v8.2.6.3	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.