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CVE-2026-28415

Gradio has Open Redirect in OAuth Flow

Published: Feb 27, 2026Updated: Mar 5, 2026 Sources: CVE List NVD GHSACWE-200
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.2%
Top 86.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-200CWE-284CWE-330CWE-601

Affected Products

gradiogradio-app
Library
AI / ML / notebook-mlops
gradiogradio project
Library
AI / ML / notebook-mlops
gradioPyPIOSS Libraries
gradio-apposs-projectAI / MLaka gradio-app/gradio
gradio projectoss-projectAI / MLaka gradio
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Collection
Credential Access
Initial Access
View detailed technique mapping

References

https://github.com/gradio-app/gradio/security/advisories/GHSA-pfjf-5gxr-995x
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-28415
nvd.nist.gov
https://github.com/gradio-app/gradio/commit/dfee0da06d0aa94b3c2684131e7898d5d5c1911e
github.com
and 3 more references View all →

Timeline

Published
Feb 27, 2026
Last Updated
Mar 5, 2026

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