CVE-2026-58168

DeepTutor before version 1.4.10 contains an authorization bypass vulnerability that allows low-privilege users to invoke unrestricted MCP tools due to the allowed_mcp_tools function returning None instead of a denied result when mcp_tools is omitted from a user's grant in deeptutor/multi_user/tool_access.py. Attackers or prompt-injected content acting within a user session can enumerate and invoke any configured MCP tool, including filesystem, shell, and browser servers, gaining unauthorized access to sensitive deployment resources.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/HKUDS/DeepTutor/commit/90046374b3dcd4f8a866d2d64a64440bc08eb2ef
https://github.com/HKUDS/DeepTutor/pull/579
https://github.com/HKUDS/DeepTutor/releases/tag/v1.4.10
https://www.vulncheck.com/advisories/deeptutor-insecure-default-grants-unrestricted-mcp-tool-access-to-non-admin-users
https://github.com/HKUDS/DeepTutor/pull/579

Configurations

No configuration.

History

25 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) DeepTutor antes de la versión 1.4.10 contiene una vulnerabilidad de omisión de autorización que permite a usuarios con bajos privilegios invocar herramientas MCP sin restricciones debido a que la función allowed_mcp_tools devuelve None en lugar de un resultado denegado cuando mcp_tools se omite de la concesión de un usuario en deeptutor/multi_user/tool_access.py. Atacantes o contenido inyectado por prompt actuando dentro de una sesión de usuario pueden enumerar e invocar cualquier herramienta MCP configurada, incluyendo servidores de sistema de archivos, shell y navegador, obteniendo acceso no autorizado a recursos de despliegue sensibles.

Information

Published : 2026-06-30 17:16

Updated : 2026-10-25 21:10

NVD link : CVE-2026-58168

Mitre link : CVE-2026-58168

CVE.ORG link : CVE-2026-58168

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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