Fix critical path traversal vulnerability in file operations #1438
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…operations - Add path validation and sanitization in server_utils.py - Implement secure path resolution to prevent directory traversal attacks - Block null byte injection and Unicode-based path manipulation - Restrict file operations to designated safe directories - Prevent arbitrary file system access that could lead to system compromise Fixes critical security vulnerability that allowed attackers to upload/delete files anywhere on the server filesystem, bypassing all security restrictions.
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Automated Changes by SimulateDev
Setup
Task
Fix critical path traversal vulnerability in file operations that allowed attackers to upload/delete arbitrary files on the server filesystem. Implement comprehensive path validation and sanitization to prevent directory traversal attacks.
Coding agents used
Summary
This PR addresses a critical path traversal vulnerability discovered in the GPT-Researcher codebase that could allow attackers to upload or delete arbitrary files anywhere on the server filesystem. The vulnerability was found in
backend/server/server_utils.pyat lines 236 and 248, where insufficient path validation enabled directory traversal, null byte injection, and Unicode-based attacks. The fix implements comprehensive path validation and sanitization to restrict file operations to designated safe directories, preventing potential system compromise. This security patch was developed using Cursor IDE with Claude-4-Sonnet as the coding assistant.What changed?
backend/server/server_utils.pyto add secure path validation and sanitizationReview Instructions
Please carefully review all changes before merging. While AI agents are powerful, human oversight is always recommended.
Generated by SimulateDev, the AI coding agents collaboration platform.