> CVE-2026-28415 [MEDIUM]

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PUBLISHED
2026-02-27 22:16
MODIFIED
2026-02-27 22:16
CVSS_SCORE V3
4.3
EPSS (Prob. Exploit)
0.30%
Top 78.4%
DATA SOURCES:
NVD 🔗 2026-02-27 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-11-01

> 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_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EXPLOITABILITY
2.8
IMPACT
1.4

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

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

> CWE DETAILED DESCRIPTIONS

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. | CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-330: Use of Insufficiently Random Values - The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. | CWE-601: URL Redirection to Untrusted Site - The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

> GITHUB SECURITY ADVISORY

GHSA-pfjf-5gxr-995x MODERATE

Gradio has an Open Redirect in its OAuth Flow

AFFECTED PACKAGES:
PIP / gradio
< 6.6.0
Fixed in: 6.6.0

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Gradio has Open Redirect in OAuth Flow

AFFECTED PACKAGES:
Unknown / Unknown
4806 versions affected
ALIASES:
GHSA-pfjf-5gxr-995x, PYSEC-2026-65

> HISTORIQUE DES MODIFICATIONS

Première apparition
27/02/2026 22:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. | CWE-...
Nouvelle valeur:
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. | CWE-...
📊 ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. | CWE-...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

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