CVE-2026-28415

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/gradio-app/gradio/security/advisories/GHSA-pfjf-5gxr-995x	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gradio_project:gradio:*:*:*:*:*:python:*:*

History

No history.

Information

Published : 2026-02-27 22:16

Updated : 2026-03-05 13:06

NVD link : CVE-2026-28415

Mitre link : CVE-2026-28415

CVE.ORG link : CVE-2026-28415

JSON object : View

Products Affected

gradio_project

gradio

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-284

Improper Access Control

CWE-330

Use of Insufficiently Random Values

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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