CVE-2026-59227: Open WebUI: POST /api/v1/images/edit bypasses the global image-edit switch and the per-user image-generation permission

POST /api/v1/images/edit performed no authorization beyond requiring a verified account. Every other image-editing surface in Open WebUI enforces the global image-edit switch and the per-user image-generation permission — the /api/v1/images/generations route, the built-in edit_image tool, and the chat image-edit middleware — but the direct edit route enforced neither. A verified non-admin user could therefore invoke server-side image editing, reaching the configured image-edit provider with the administrator’s credentials, even when the administrator had globally disabled image editing (ENABLE_IMAGE_EDIT=False) or denied that user image-generation permission. The image-editing UI is surfaced only to administrators (Playground), so the route additionally exposed an admin-only capability to any verified user.