CVE-2026-45400
High
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, a parsing difference between the urlparse and requests libraries led to an SSRF bypass vulnerability. This vulnerability is fixed in 0.9.5.
SeverityHigh
CVSS8.5
Exploit probability—
ProductOpenwebui Open Webui
PublishedMay 15, 2026
First seenMay 15, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- openwebui open_webui0.9.5 or later
- open-webui0.9.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openwebui open_webui | v < 0.9.5 | 0.9.5 |
| open-webuiPyPI | v < 0.9.5 | 0.9.5 |
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