CVE-2026-33375

Severity CVSS v4.0:

Pending analysis

Type:

CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

Publication date:

26/03/2026

Last modified:

31/03/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:grafana:grafana:::::-:::*	11.6.0 (including)	11.6.14 (excluding)
cpe:2.3:a:grafana:grafana:::::-:::*	12.1.0 (including)	12.1.10 (excluding)
cpe:2.3:a:grafana:grafana:::::-:::*	12.2.0 (including)	12.2.8 (excluding)
cpe:2.3:a:grafana:grafana:::::-:::*	12.3.0 (including)	12.3.6 (excluding)
cpe:2.3:a:grafana:grafana:::::-:::*	12.4.0 (including)	12.4.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

https://grafana.com/security/security-advisories/cve-2026-33375