CVEvulnerability

CVE-2026-28415

4.7 MEDIUM Published 2026-02-27 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-02-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Weaknesses
CWE-200, CWE-284, CWE-330, CWE-601

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.

Affected configurations

• gradio project gradio (< 6.6.0)

Related

Weakness · CWE (4)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-284 Improper Access Control weakness
  • CWE-330 Use of Insufficiently Random Values weakness
  • CWE-601 URL Redirection to Untrusted Site weakness

References