CVE-2026-33375: Grafana

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API restrictions and trigger a catastrophic Out-Of-Memory (OOM) memory exhaustion, crashing the host container.

Affected products

• Grafana Grafana: from 11.6.0, before 11.6.14 (fixed in 11.6.14); from 12.1.0, before 12.1.10 (fixed in 12.1.10); from 12.2.0, before 12.2.8 (fixed in 12.2.8); from 12.3.0, before 12.3.6 (fixed in 12.3.6); from 12.4.0, before 12.4.2 (fixed in 12.4.2)

Published 2026-03-26. Last modified 2026-06-17.