Insertion of Sensitive Information Into Sent Data Affecting open-webui package, versions [0.6.27,0.11.1)
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-20158702
- published27 Sept 2026
- disclosed10 Sept 2026
- creditUnknown
Introduced: 10 Sep 2026
NewCVE-2026-87015 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.11.1 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the tool loading process. An attacker can gain unauthorized access to user session credentials by operating a tool server configured for bearer authentication, which receives session cookies intended for another connection. This is only exploitable if at least two external tool servers are attached to the same request, with at least one set to session or system OAuth authentication, and the session-authenticated connection is processed last.