CVE-2026-33378

MEDIUM

6.5

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.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published5/13/2026

Last Modified5/13/2026

Sourcenvd

Honeypot Sightings0

References

https://grafana.com/security/security-advisories/cve-2026-33378(security@grafana.com)

IOC Correlations

No correlations recorded

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