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

May 14, 2026 (updated May 19, 2026)

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.

References

github.com/advisories/GHSA-r8wh-8m7r-fh33
github.com/open-webui/open-webui/security/advisories/GHSA-r8wh-8m7r-fh33
nvd.nist.gov/vuln/detail/CVE-2026-45301

Code Behaviors & Features

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