Open WebUI: Missing permission check in files API allows authenticated users to list, access and delete every uploaded file — CVE-2026-45301

Summary

### Summary A missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. ### Details All `files/` related endpoints lack permission checks. #### Listing all files For example, let's see how file listing is implemented:…

Product

pip: open-webui

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

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