Incorrect Authorization Affecting open-webui package, versions [0.10.0,0.11.1)
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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Start learning- Snyk IDSNYK-PYTHON-OPENWEBUI-20158691
- published27 Sept 2026
- disclosed10 Sept 2026
- creditUnknown
Introduced: 10 Sep 2026
NewCVE-2026-87998 (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 Incorrect Authorization in the knowledge base delete handler process. An attacker can remove instance-wide configuration managed by administrators by sending a DELETE request to the relevant API endpoint with a valid write grant, causing all other dependent knowledge bases to lose access to the shared external connection and become non-functional until manual intervention by an administrator. This is only exploitable if the deployment uses external knowledge bases backed by qdrant, milvus, or pgvector providers, and the attacker holds a write grant on at least one external knowledge base bound to an administrator-created external connection.