User Impersonation Affecting open-webui package, versions [,0.10.0)
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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Test your applications- Snyk IDSNYK-PYTHON-OPENWEBUI-18307479
- published25 Jul 2026
- disclosed24 Jul 2026
- creditUnknown
Introduced: 24 Jul 2026
NewCVE-2026-59224 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.10.0 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to User Impersonation via the ws_terminal process. An attacker can gain unauthorized access to another user's terminal session by injecting crafted values into the session_id parameter, causing the backend to resolve the attacker's chosen user identity. This can be exploited by an authenticated user through manipulation of WebSocket requests or by leveraging trust in the X-User-Id header on the HTTP path.