Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/models/import endpoint allows users with the workspace.models_import permission to overwrite any existing model in the database, regardless of ownership. When an imported model's ID matches an existing model, the endpoint merges the attacker's payload over the existing model data and writes it to the database with no ownership or access grant validation. Additionally, filter_allowed_access_grants is never called, bypassing the access grant restrictions enforced on all other model mutation endpoints. This vulnerability is fixed in 0.9.0.
References
| Link | Resource |
|---|---|
| https://github.com/open-webui/open-webui/security/advisories/GHSA-mqq6-cqcx-38vg | Exploit Vendor Advisory |
Configurations
History
19 May 2026, 03:10
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Openwebui
Openwebui open Webui |
|
| CPE | cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:* | |
| References | () https://github.com/open-webui/open-webui/security/advisories/GHSA-mqq6-cqcx-38vg - Exploit, Vendor Advisory |
15 May 2026, 20:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-15 20:16
Updated : 2026-05-19 03:10
NVD link : CVE-2026-44562
Mitre link : CVE-2026-44562
CVE.ORG link : CVE-2026-44562
JSON object : View
Products Affected
openwebui
- open_webui