What’s Vulnerable › Vulnerabilities
CVE-2026-33375: Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-26 · updated 2026-06-17
- Weakness: CWE-400
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.
Affected products
- Grafana: from 11.6.0 before 11.6.14; from 12.1.0 before 12.1.10; from 12.2.0 before 12.2.8; from 12.3.0 before 12.3.6; from 12.4.0 before 12.4.2 — fixed in 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2
How to fix
Upgrade to a fixed version: Grafana 11.6.14, 12.1.10, 12.2.8, 12.3.6. Check the vendor advisory for mitigations.
References
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