CVE-2026-27811
Roxy-WI has a Command Injection via diff parameter in config comparison allows authenticated RCE
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.
INFO
Published Date :
March 18, 2026, 12:16 a.m.
Last Modified :
March 19, 2026, 6 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Roxy-WI to version 8.2.6.3.
- Apply vendor patches for Roxy-WI.
- Restrict access to the compare endpoint.
- Validate all user inputs.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27811.
| URL | Resource |
|---|---|
| https://github.com/roxy-wi/roxy-wi/commit/a10ac7306c252014f97a7213db4a9470300fa064 | Patch |
| https://github.com/roxy-wi/roxy-wi/releases/tag/v8.2.6.3 | Product Release Notes |
| https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-jvmv-cw47-jh77 | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27811 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27811
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27811 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-27811 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 19, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:roxy-wi:roxy-wi:*:*:*:*:*:*:*:* versions up to (excluding) 8.2.6.3 Added Reference Type GitHub, Inc.: https://github.com/roxy-wi/roxy-wi/commit/a10ac7306c252014f97a7213db4a9470300fa064 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/roxy-wi/roxy-wi/releases/tag/v8.2.6.3 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-jvmv-cw47-jh77 Types: Exploit, Mitigation, Vendor Advisory -
New CVE Received by [email protected]
Mar. 18, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added CWE CWE-77 Added Reference https://github.com/roxy-wi/roxy-wi/commit/a10ac7306c252014f97a7213db4a9470300fa064 Added Reference https://github.com/roxy-wi/roxy-wi/releases/tag/v8.2.6.3 Added Reference https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-jvmv-cw47-jh77