CVE-2026-27483 PoC — MindsDB has Path Traversal in /api/files Leading to Remote Code Execution

Title:MindsDB has Path Traversal in /api/files Leading to Remote Code Execution (CVE-2026-27483)
Description:MindsDB is a platform for building artificial intelligence from enterprise data. Prior to version 25.9.1.1, there is a path traversal vulnerability in Mindsdb's /api/files interface, which an authenticated attacker can exploit to achieve remote command execution. The vulnerability exists in the "Upload File" module, which corresponds to the API endpoint /api/files. Since the multipart file upload does not perform security checks on the uploaded file path, an attacker can perform path traversal by using `../` sequences in the filename field. The file write operation occurs before calling clear_filename and save_file, meaning there is no filtering of filenames or file types, allowing arbitrary content to be written to any path on the server. Version 25.9.1.1 patches the issue.

MindsDB < 25.9.1.1 contains a remote code execution caused by path traversal in the /api/files upload file module, letting authenticated attackers write arbitrary files and execute commands, exploit requires authentication.

 id: CVE-2026-27483

info:
  name: MindsDB - Remote Code Execution
  author: thewhiteh4t
  severity: 

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