HIGH 8.1
PYSEC-2026-1737
Open WebUI Allows Arbitrary File Reading and Deletion
Quick fix
PYSEC-2026-1737 — open-webui: upgrade to the fixed version with the command below.
pip install --upgrade 'open-webui>=0.3.16'Details
An improper access control vulnerability in open-webui/open-webui v0.3.8 allows attackers to view and delete any files. The application does not verify whether the attacker is an administrator, allowing the attacker to directly call the GET /api/v1/files/ interface to retrieve information on all files uploaded by users, which includes the ID values. The attacker can then use the GET /api/v1/files/{file_id} interface to obtain information on any file and the DELETE /api/v1/files/{file_id} interface to delete any file.
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