Roxy-WI up to 8.2.6.3 Scheduled Task haproxy_section_save path traversal

Summaryinfo

A vulnerability marked as critical has been reported in Roxy-WI. This affects the function haproxy_section_save of the component Scheduled Task Handler. This manipulation causes path traversal. This vulnerability is handled as CVE-2026-33076. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Roxy-WI. It has been declared as critical. Affected by this vulnerability is the function haproxy_section_save of the component Scheduled Task Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.4, the haproxy_section_save interface presents a vulnerability that could lead to remote code execution due to path traversal and writing into scheduled tasks. Version 8.2.6.4 fixes the issue.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-33076 since 03/17/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 8.2.6.4 eliminates this vulnerability. Applying the patch aecc7971959092fa93e93531f1ffcde33524b031 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• Roxy-WI

Version

• 6.1.1.0
• 6.3.5.0
• 6.3.6.0
• 6.3.9.0
• 8.1.4
• 8.2.6.3

License

• open-source

Website

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

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