CVE-2026-33375

Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS

State: Published
Severity: 6.5 Medium
Published: Mar 26, 2026
Updated: Aug 27, 2026
Reserved: Mar 19, 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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	GRAFANA

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
Grafana OSSGrafana	11.6.0 to before 11.6.14+security-01Affected 12.1.0 to before 12.1.10+security-01Affected 12.2.0 to before 12.2.8+security-01Affected 12.3.0 to before 12.3.6+security-01Affected 12.4.0 to before 12.4.2Affected

References

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

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