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-2026-44554 (opens in a new tab)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 in the process_web and process_youtube endpoints when the overwrite parameter is set to true and the collection_name is attacker-controlled. An attacker can overwrite or delete another user's knowledge base content by sending crafted API requests with a known collection identifier. This is only exploitable if the attacker has a valid user account and knows the target collection name (KB UUID), which can be obtained through enumeration.