Submit #803095: ezequiroga mcp-bases c630b8ab0f970614d42da8e566e9c0d15a16414c Path Traversalinfo

Titelezequiroga mcp-bases c630b8ab0f970614d42da8e566e9c0d15a16414c Path Traversal
BeschreibungThe search_papers MCP tool reuses the caller-controlled topic string as a directory name under papers/, but it only lowercases the value and replaces spaces with underscores. Traversal markers such as ../ are preserved. As a result, a request like topic="../escape-test" causes the server to create papers/../escape-test, which resolves outside the intended storage directory, and to later read or write papers_info.json in that escaped location. The related resource handler papers://{topic} repeats the same unsafe path construction when reading topic data back.
Quelle⚠️ https://github.com/ezequiroga/mcp-bases/issues/2
Benutzer
 LittleW (UID 97283)
Einreichung12.04.2026 13:03 (vor 2 Monaten)
Moderieren29.04.2026 10:45 (17 days later)
StatusAkzeptiert
VulDB Eintrag360106 [ezequiroga mcp-bases research_server.py search_papers topic Directory Traversal]
Punkte20

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