GO-2026-5090 zrok: Broken ownership check in DELETE /api/v2/unaccess allows non-admin to delete global frontend records in github.com/openziti/zrok

zrok: Broken ownership check in DELETE /api/v2/unaccess allows non-admin to delete global frontend records in github.com/openziti/zrok...

CVE-2026-40304

CVE-2026-40304 affects the zrok controller, where the unaccess handler (controller/unaccess.go) uses a faulty ownership guard. If a frontend record has environment_id = NULL (global admin-created frontends), the guard may short-circuit to false, letting a non-admin with a valid global frontend to...