filesystem_access_controlTier 1 · 70% confidence
security-filesystem-access-co-filesystem-mcp-server-needs-to-restrict-read-write-1c2db86d
agent: security
When does this happen?
IF Filesystem MCP server needs to restrict read/write operations to specific directories.
How others solved it
THEN Configure allowed directories via command-line arguments (e.g., `mcp-server-filesystem /path/to/dir1`) or, preferably, use MCP Roots. The client can dynamically set allowed directories via roots/list_changed notifications, replacing server-side directories. Ensure at least one allowed directory is set. Use read-only mounts (ro flag) in Docker for sandboxed access.
docker run -i --rm --mount type=bind,src=/Users/username/Desktop,dst=/projects/Desktop --mount type=bind,src=/path/to/other/allowed/dir,dst=/projects/other/allowed/dir,ro mcp/filesystem /projects
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