CVE-2026-45351
Medium
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.9, when a regular user [non-admin] logs into the application, a http://IP:8080/api/models? web request is initiated by the application and in response, it reveals the system prompt of available models set by admin on models pages in workspace affecting the confidentiality of application. This vulnerability is fixed in 0.8.9.
SeverityMedium
CVSS6.5
Exploit probability—
ProductOpenwebui Open Webui
PublishedMay 15, 2026
First seenMay 15, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- openwebui open_webui0.8.9 or later
- open-webui0.8.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openwebui open_webui | v < 0.8.9 | 0.8.9 |
| open-webuiPyPI | v < 0.8.9 | 0.8.9 |
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