CVE-2026-51870

Code injection vulnerability in deeptutor 1.4.0 in ExecTool.execute. Through the live tutorbot WebSocket interface, a remote caller can induce the tool layer to execute chosen shell commands in the service environment.

Path traversal vulnerability in deeptutor 1.4.0 in EditFileTool.execute. Through the live tutorbot WebSocket interface, a remote caller can induce the tool layer to write or edit absolute paths outside the intended bot workspace.

Authorization bypass vulnerability in deeptutor 1.4.0 in TutorBotManager.write_bot_file. A remote caller can enumerate bot IDs and overwrite another bot's whitelisted control files through the HTTP tutorbot file route.

Authorization bypass vulnerability in deeptutor 1.4.0 in TurnRuntimeManager.regenerate_last_turn. A remote caller can enumerate or obtain a session_id and trigger regenerate on another user's session.

Authorization bypass vulnerability in DeepTutor 1.4.0 in the book confirmation flow. An unauthenticated or unauthorized caller can reuse a publicly exposed book_id to submit a confirm-proposal request for an existing book, causing unauthorized overwrites of persisted metadata and spine content.

DeepTutor before version 1.4.10 contains an authorization bypass vulnerability allowing low-privilege users to invoke unrestricted MCP tools. The allowed_mcp_tools function returns None instead of a denied result when mcp_tools is omitted from a user's grant.