cvedb.io
CVE-2026-45350
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2026-05-15T22:16:55.323 · Last modified 2026-06-17T10:51:57.073

Summary

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, there is a vulnerability in chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. In the chat_completion API, the parameters tool_ids and tool_servers are supplied by the user. These parameters are used to create a tools_dict by the middleware. This is then used by get_tool_by_id to retrieve the appropriate tool. However, there is no checks in that ensures the user that uses the API has permission to use the tool, meaning that a user can invoke any server tool by supplying the correct tool_id or tool_servers parameters via the chat completion API. Moreover, the authentication token stored in the server wou

Affected products

openwebui — open_webui

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.