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CVE-2026-45365

Open WebUI: Authenticated users can bypass model access control via exposed query parameter PUBLISHED

Description (CNA)

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypass_filter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via FastAPI query string binding, allowing any authenticated user to append ?bypass_filter=true and bypass model access control checks to invoke admin-restricted models. This vulnerability is fixed in 0.8.11.

Affected (CNA)

Vendor / productVersions
open-webui / open-webuiaffected < 0.8.11

CWE

CWE-285

References

ADP enrichment

CISA-ADP

No English description supplied.