CVE-2026-45667: Openwebui Open Webui

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDING_FUNCTION(...). This allows any unauthenticated caller to trigger embedding generation which can lead to direct cost exposure if a paid provider is used. This vulnerability is fixed in 0.8.0.

Affected products

• Openwebui Open Webui: before 0.8.0 (fixed in 0.8.0)

Published 2026-05-15. Last modified 2026-06-17.