medium6.5
CVE-2026-33378
Using the $__timeGroup macro, one can achieve an OOM by overloading the server.
Impact
Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Grafana | Grafana | from 8.0.0 before 11.6.14 from 12.0.0 before 12.2.8 from 12.3.0 before 12.3.6 from 12.4.0 before 12.4.3 Versions 11.6.14, 12.2.8 |