Missing Authorization Affecting open-webui package, versions [,0.9.0)
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- published9 May 2026
- disclosed8 May 2026
- creditClassic298
Introduced: 8 May 2026
NewCVE-2026-44557 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade open-webui to version 0.9.0 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Missing Authorization via the _validate_collection_access function. An attacker can obtain sensitive metadata, such as IDs, names, and descriptions of all knowledge bases across users, by sending crafted API requests to the retrieval query endpoints.