CVE-2026-21723

The alertmanager templates test endpoint /api/alertmanager/grafana/config/api/v1/templates/test can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with...

CVE-2026-21723 CVE-2026-21723 Record

The alertmanager templates test endpoint /api/alertmanager/grafana/config/api/v1/templates/test can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with...