CVE-2026-28415: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in gradio-app gradio
Gradio is an open-source Python package designed for quick prototyping. Prior to version 6.6.0, the _redirect_to_target() function in Gradio's OAuth flow accepts an unvalidated _target_url query parameter, allowing redirection to arbitrary external URLs. This affects the /logout and /login/callback endpoints on Gradio apps with OAuth enabled (i.e. apps running on Hugging Face Spaces with gr.LoginButton). Starting in version 6.6.0, the _target_url parameter is sanitized to only use the path, query, and fragment, stripping any scheme or host.
CVE-2026-28415: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in gradio-app gradio
Description
Gradio is an open-source Python package designed for quick prototyping. Prior to version 6.6.0, the _redirect_to_target() function in Gradio's OAuth flow accepts an unvalidated _target_url query parameter, allowing redirection to arbitrary external URLs. This affects the /logout and /login/callback endpoints on Gradio apps with OAuth enabled (i.e. apps running on Hugging Face Spaces with gr.LoginButton). Starting in version 6.6.0, the _target_url parameter is sanitized to only use the path, query, and fragment, stripping any scheme or host.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-27T15:33:57.289Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69a212fb32ffcdb8a277776d
Added to database: 2/27/2026, 9:56:11 PM
Last updated: 2/27/2026, 9:56:29 PM
Views: 1
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CriticalActions
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