CVE-2026-59212: Openwebui Open Webui

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _verify_knowledge_file_access only checked read access while file write and delete routes later trusted object-derived access through writable model meta.knowledge entries, allowing a user with read-only knowledge file access to upgrade to file write or delete operations. This issue is fixed in version 0.10.0.

Affected products

• Openwebui Open Webui: version 0.9.6 only

Published 2026-07-09. Last modified 2026-07-10.