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CVE Vulnerability Details :
CVE-2026-28415
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-27 Feb, 2026 | 21:44
Updated At-27 Feb, 2026 | 21:44
Rejected At-
▼CVE Numbering Authority (CNA)
Gradio has Open Redirect in OAuth Flow

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 Products
Vendor
gradio-app
Product
gradio
Versions
Affected
  • < 6.6.0
Problem Types
TypeCWE IDDescription
CWECWE-200CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWECWE-284CWE-284: Improper Access Control
CWECWE-330CWE-330: Use of Insufficiently Random Values
CWECWE-601CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Type: CWE
CWE ID: CWE-200
Description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Type: CWE
CWE ID: CWE-284
Description: CWE-284: Improper Access Control
Type: CWE
CWE ID: CWE-330
Description: CWE-330: Use of Insufficiently Random Values
Type: CWE
CWE ID: CWE-601
Description: CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Metrics
VersionBase scoreBase severityVector
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/gradio-app/gradio/security/advisories/GHSA-pfjf-5gxr-995x
x_refsource_CONFIRM
Hyperlink: https://github.com/gradio-app/gradio/security/advisories/GHSA-pfjf-5gxr-995x
Resource:
x_refsource_CONFIRM
Details not found