CVE-2026-58168High· 8.8▾ TwilightDeepTutor missing MCP tool authorization allows non-admin users to invoke unrestricted tools
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
0.6%
Last analysed / modified upstream
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.
deeptutor < 1.4.10Upgrade to a patched release:
deeptutor 1.4.10Connected by shared product, vendor, weakness, or advisory.
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