Summaryinfo

A vulnerability marked as critical has been reported in nekename OpenDeck up to 2.8.0. This impacts an unknown function of the component Request Path Handler. The manipulation leads to path traversal. This vulnerability is listed as CVE-2026-28427. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in nekename OpenDeck up to 2.8.0 and classified as critical. This issue affects an unknown code of the component Request Path Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OpenDeck is Linux software for your Elgato Stream Deck. Prior to 2.8.1, the service listening on port 57118 serves static files for installed plugins but does not properly sanitize path components. By including ../ sequences in the request path, an attacker can traverse outside the intended directory and read any file OpenDeck can access. This vulnerability is fixed in 2.8.1.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-28427 since 02/27/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 2.8.1 eliminates this vulnerability. Applying the patch 488a52050017e95a72ba448226ac5e19a20dd9ed 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

Vendor

• nekename

Name

• OpenDeck

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8.0

License

• open-source

Website

• Product: https://github.com/nekename/OpenDeck/

CPE 2.3info

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CPE 2.2info

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