Answer in brief
CVE-2026-33375 records a Medium severity (CVSS 6.5) vulnerability in Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS. The current sources do not mark it as known exploited. The current feed maps Grafana/Grafana OSS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Grafana/Grafana OSS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Grafana/Grafana OSSgeneric | >=11.6.0 <11.6.14+security-01 || >=12.1.0 <12.1.10+security-01 || >=12.2.0 <12.2.8+security-01 || >=12.3.0 <12.3.6+security-01 || >=12.4.0 <12.4.2 | 11.6.14+security-01, 12.1.10+security-01, 12.2.8+security-01, 12.3.6+security-01, 12.4.2 |
Published upstream
Mar 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.