Why it matters

LFI via LLM leaks sensitive data. Understanding shapes file access safety.

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The architecture

Request path with traversal.

Tool reads sensitive.

Content exposed.

LFI via LLM flowPath inputuser or LLMRead fileno validationSensitive contentexposedSandbox file access + allowlist + canonicalize paths; deny path traversal
LFI.
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How it works end to end

Sandbox: chroot / container.

Path canonicalize + validate.

Allowlist: specific dirs only.

Deny traversal (..).