6.5
Medium
CVE-2026-33375 The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Grafana OSS 12.4 | 12.4.0 → < 12.4.2 | 12.4.2 |
| Grafana OSS 12.3 | 12.3.0 → < 12.3.6+security-01 | 12.3.6+security-01 |
| Grafana OSS 12.2 | 12.2.0 → < 12.2.8+security-01 | 12.2.8+security-01 |
| Grafana OSS 12.1 | 12.1.0 → < 12.1.10+security-01 | 12.1.10+security-01 |
| Grafana OSS 11.6 | 11.6.0 → < 11.6.14+security-01 | 11.6.14+security-01 |
References
- grafana.com grafana.com
Timeline
- Published
- Last modified
Other CVEs of Grafana OSS
The 45 CVEs of Grafana OSS →
CVE-2026-33379
Dashboard snapshot permission bypass
8.5
High
CVE-2026-79656
OAuth and OIDC tokens written unredacted to server logs by the Generic OAuth, Google and GitLab connectors
6.0
Medium
CVE-2026-103506
SSO settings authorization bypass
8.9
High
CVE-2026-88858
Server-side expression parser denial of service
6.5
Medium