CVE-2026-45365

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/open-webui/open-webui/security/advisories/GHSA-v6qf-75pr-p96m	Exploit Patch Vendor Advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-v6qf-75pr-p96m	Exploit Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-15 22:16

Updated : 2026-06-17 10:51

NVD link : CVE-2026-45365

Mitre link : CVE-2026-45365

CVE.ORG link : CVE-2026-45365

JSON object : View

Products Affected

openwebui

open_webui

CWE

CWE-285

Improper Authorization

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