| Título | elie mcp-project 0.1.0 Path Traversal |
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| Descrição | MCP Research Server stores arXiv search results under PAPER_DIR = "papers". The search_papers(topic, max_results) tool incorrectly reuses the caller-controlled topic string as a filesystem directory name:
path = os.path.join(PAPER_DIR, topic.lower().replace(" ", "_"))
file_path = os.path.join(path, "papers_info.json")
Because the code only lowercases the string and replaces spaces, traversal sequences such as ../ remain intact. A malicious topic therefore escapes the intended papers/ directory and causes the server to create or overwrite papers_info.json in an attacker-chosen location on the host.
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| Fonte | ⚠️ https://github.com/elie/mcp-research-server/issues/1 |
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| Utilizador | LittleW (UID 97283) |
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| Submissão | 12/04/2026 12h14 (há 2 meses) |
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| Moderação | 28/04/2026 15h17 (16 days later) |
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| Estado | Aceite |
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| Entrada VulDB | 359971 [elie mcp-project 0.1.0 research_server.py search_papers topic Travessia de Diretório] |
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| Pontos | 20 |
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