CVE-2026-28415

MEDIUM EPSS 13.9%
Published Feb 27, 20264mo ago · Modified Mar 5, 20263mo ago
4.7 CVSS 3.1
Medium
Find Similar
Published Feb 27, 2026 4mo ago
Last Modified Mar 5, 2026 3mo ago

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.

CVSS Details

Base Score
4.7
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
13.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 4

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-284
CWE-330
CWE-601

Affected Products 1

VendorProductVersionRange
gradio_projectgradio* <6.6.0

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.