Roxy-WI up to 8.2.6.4 Web Interface class_models.py shlex.quote escape output

Summaryinfo

A vulnerability marked as critical has been reported in Roxy-WI up to 8.2.6.4. Impacted is the function shlex.quote of the file app/modules/roxywi/class_models.py of the component Web Interface. The manipulation leads to escape output. This vulnerability is traded as CVE-2026-45565. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Roxy-WI up to 8.2.6.4. This issue affects the function shlex.quote of the file app/modules/roxywi/class_models.py of the component Web Interface. The manipulation with an unknown input leads to a escape output vulnerability. Using CWE to declare the problem leads to CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, EscapedString (app/modules/roxywi/class_models.py:16-30) is the centralised Pydantic validator used on dozens of fields including SSH credential name, username, description, etc. Its if/elif/elif/else flow returns the metacharacter-stripped value without also enforcing the .. block. An attacker who appends a single ;, &, |, $, or backtick to a .. payload routes the value through the strip arm, where .. survives unblocked and the result is not shlex.quote()'d either. At time of publication, there are no publicly available patches.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-45565 since 05/12/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/10/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Roxy-WI

Version

• 8.2.6.0
• 8.2.6.1
• 8.2.6.2
• 8.2.6.3
• 8.2.6.4

Website

• Product: https://github.com/roxy-wi/roxy-wi/

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