CVE-2026-54010
High
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible through the shared chat, and the file endpoints read or delete the victim file. This vulnerability is fixed in 0.9.6.
SeverityHigh
CVSS8.3
Exploit probability—
ProductOpenwebui Open Webui
PublishedJun 23, 2026
First seenJun 23, 2026
How to fix
Update
- openwebui open_webui0.9.6 or later
- open-webui0.9.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openwebui open_webui | v < 0.9.6 | 0.9.6 |
| open-webuiPyPI | v < 0.9.6 | 0.9.6 |
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