CVE-2026-45395
CVE-2026-45395 · Open WebUI: Missing `workspace.tools` Authorization Check on Tool Update Endpoint Allows Privilege Escalation to Code Execution
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the tool update endpoint (POST /api/v1/tools/id/{id}/update) is missing the workspace.tools permission check that is present on the tool create endpoint. This allows a user who has been explicitly denied tool management capabilities ( and who the administrator considers untrusted for code execution ) to replace a tool's server-side Python content and trigger execution, bypassing the intended workspace.tools security boundary. This vulnerability is fixed in 0.9.5.
CVSS 7.2 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
open-webui
- Versions
- < 0.9.5: Affected
No fix published
open-webui npm
- Affected ranges
- SEMVER: < 0.9.5
Update to 0.9.5