Vulnerability · Published Mar 26, 2026 · Assigned by GRAFANA
CVE-2026-33375Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS
Medium 6.5
In plain English
A medium-severity uncontrolled resource consumption in Grafana OSS from Grafana. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 60.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | grafana | 12.2.8-r0 | ALPINE-CVE-2026-33375 |
| Alpine:v3.24 | grafana | 12.4.3-r0 | ALPINE-CVE-2026-33375 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Grafana | Grafana OSS | 11.6.0 – before 11.6.14+security-0112.1.0 – before 12.1.10+security-0112.2.0 – before 12.2.8+security-0112.3.0 – before 12.3.6+security-0112.4.0 – before 12.4.2 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://grafana.com/security/security-advisories/cve-2026-33375 vendor-advisory