An authorization bypass vulnerability in Grafana through 13.2.0 allows an Editor-role user to delete protected contact points (receivers) without the required alert.notifications.receivers.protected:write permission.
https://grafana.com/security/security-advisories/cve-2026-21724/
https://github.com/grafana/grafana/blob/main/pkg/services/ngalert/provisioning/contactpoints.go