gradio-app gradio up to 6.15.x FileExplorer preprocess path traversal

Summaryinfo

A vulnerability was found in gradio-app gradio up to 6.15.x. It has been classified as critical. The affected element is the function preprocess of the component FileExplorer. This manipulation causes path traversal. This vulnerability is tracked as CVE-2026-49119. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in gradio-app gradio up to 6.15.x. It has been declared as critical. Affected by this vulnerability is the function preprocess of the component FileExplorer. 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. The summary by CVE is:

Gradio before 6.16.0 contain a path traversal vulnerability in the FileExplorer component's preprocess() method that allows unauthenticated attackers to escape the configured root directory by supplying path segments containing directory traversal sequences or absolute paths. Attackers can provide crafted path segments that cause os.path.join to discard the root_dir prefix entirely, resulting in arbitrary file read or exposure of sensitive files outside the intended directory.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-49119 since 05/27/2026. 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 6.16.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 97d541f3d5fd05b2587a69ecc94b68fe5d2d7004 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

• gradio-app

Name

• gradio

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8
• 6.9
• 6.10
• 6.11
• 6.12
• 6.13
• 6.14
• 6.15

License

• open-source

Website

• Product: https://github.com/gradio-app/gradio/

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