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. The fix for CVE-2026-21724 addressed only the UPDATE code path in both pkg/services/ngalert/provisioning/contactpoints.go and pkg/services/ngalert/notifier/receiver_svc.go, but the DELETE path in both receiver services was not updated with the protected-field check, leaving deletion operations unguarded.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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