CVE-2026-45672: Openwebui Open Webui

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.12, the /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLE_CODE_EXECUTION=false. The feature gate is not enforced on the API endpoint — the configuration says "disabled" but code still executes. This vulnerability is fixed in 0.8.12.

Affected products

• Openwebui Open Webui: before 0.8.12 (fixed in 0.8.12)

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