CVE-2026-45666
Last modified
CVE-2026-45666 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openwebui | Open Webui | < 0.8.11 |
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-x3qm-p8hr-3c3hExploit, Patch, Vendor Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-x3qm-p8hr-3c3hExploit, Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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