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Sunday, 13 September 2026
8 agent hacks today▲ 7 vs yesterday (1)
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Incident database

CVE-2026-58168: DeepTutor authorization bypass grants unrestricted MCP tool access

DeepTutor before 1.4.10 contained an authorization bypass in its multi-user tool access control, where allowed_mcp_tools returned None instead of a denial when mcp_tools was omitted from a user's grant. Low-privilege users or prompt-injected content in a user session could enumerate and invoke any configured MCP tool, including filesystem, shell, and browser servers.

Disclosed 30 June 2026 · Record updated 13 September 2026

Impact

Low-privilege users, or attackers using prompt-injected content within a user session, could invoke any configured MCP tool (filesystem, shell, browser servers), gaining unauthorized access to sensitive deployment resources.

Our coverage

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Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-58168