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CVE-2026-28415
Gradio vulnerability analysis and mitigation

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.


SourceNVD

Related Gradio vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-28416HIGH8.6
  • GradioGradio
  • gradio
NoYesFeb 27, 2026
CVE-2026-28414HIGH7.5
  • GradioGradio
  • gradio
NoYesFeb 27, 2026
CVE-2025-48889HIGH7.5
  • GradioGradio
  • gradio
NoYesMay 30, 2025
CVE-2026-27167MEDIUM5.9
  • GradioGradio
  • gradio
NoYesFeb 27, 2026
CVE-2026-28415MEDIUM4.7
  • GradioGradio
  • gradio
NoYesFeb 27, 2026

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