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CVE-2026-45365

nvd nist
Published: May 15, 2026Modified: Jun 17, 2026

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5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability: 2.8 / Impact: 2.5
Source: security-advisories@github.com (Secondary)

Description

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 (1)

Openwebui
1 product
Open Webui
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Open Webui
Before 0.8.11

Related CWEs

CWE-285
Improper Authorization
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

References (2)

Source: security-advisories@github.com
ExploitPatchVendor Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
ExploitPatchVendor Advisory

Timeline

No history available yet.