Description
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 anonymous access enabled.
CVSS 5.3EPSS 0.198%Risk 0.54
View source- Published
- 2026-07-23 03:16:30
- Affected versions
- unknown
- Type
- Web application
- Last modified
- 2026-07-23 17:55:03
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H