Incorrect Authorization Affecting open-webui package, versions [,0.9.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published9 May 2026
- disclosed8 May 2026
- creditClassic298
Introduced: 8 May 2026
CVE-2026-44564 (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 Incorrect Authorization in the ydoc:document:update handler. An attacker can inject, modify, or delete content in collaborative documents by emitting crafted Socket.IO events after joining a document room with read-only access. If a user with write access subsequently saves the document, the unauthorized changes are persisted. This is only exploitable if the attacker has a valid user account with read access to a shared note and the note is open for collaborative editing.