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CVE-2026-33378

Grafana

Description

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.

CVSS 6.5EPSS 0.328%Risk 0.67
View source
Published
2026-05-13 20:16:20
Affected versions
unknown
Type
Installed app
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H