VULNERABILITY INTELLIGENCE

CVE-2026-45666

CVSS score6.5 MEDIUM
EPSS probability0.28%
CISA KEVNot currently listed
Published2026-05-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, the API /api/v1/notes/{note_id} endpoint lacks proper authorization checks, allowing authenticated users to retrieve notes belonging to other users by guessing or enumerating UUIDs. This results in unauthorized disclosure of potentially sensitive or private user data. This vulnerability is fixed in 0.8.11.

Weakness classification

  • security-advisories@github.com: CWE-639

Primary references