CVE-2026-57205

SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/<user_id> and GET /api/user/profile-image/<user_id> endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address, display name, and profile image. This issue is fixed in version 0.241.203.

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 LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/USER_PROFILE_IDOR_AUTHORIZATION_FIX.md
https://github.com/microsoft/simplechat/releases/tag/v0.250.001
https://github.com/microsoft/simplechat/security/advisories/GHSA-x2jq-2m5m-65m4

Configurations

No configuration.

History

24 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) SimpleChat es una aplicación segura de conversación de IA con espacios de trabajo personales y grupales para interacciones basadas en documentos. Antes de la versión 0.241.203, los endpoints autenticados GET /API/user/info/[user_id] y GET /API/user/profile-image/[user_id] en application/single_app/route_backend_users.py aceptaban un user_id proporcionado por el llamador y leían el documento de configuración de usuario de Cosmos DB correspondiente sin autorización a nivel de objeto, permitiendo a un usuario autenticado con bajos privilegios recuperar la dirección de correo electrónico, el nombre de visualización y la imagen de perfil de otro usuario. Este problema está solucionado en la versión 0.241.203.

Information

Published : 2026-07-16 16:19

Updated : 2026-10-24 20:10

NVD link : CVE-2026-57205

Mitre link : CVE-2026-57205

CVE.ORG link : CVE-2026-57205

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization

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