Authorization Bypass Through User-Controlled Key Affecting open-webui package, versions [,0.9.6)
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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- published22 Jun 2026
- disclosed17 Jun 2026
- creditbl4ckr0ss3
Introduced: 17 Jun 2026
NewCVE-2026-54009 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.9.6 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the get_image_base64_from_url function. An attacker can access files belonging to other users by supplying a file identifier in the image_url.url field that does not begin with 'http://', 'https://', or 'data:image/'. The server reads the referenced file from disk without verifying ownership, encodes it, and returns the content to the requesting user. This allows unauthorized disclosure of sensitive file contents through crafted API requests.