Answer in brief
CVE-2026-27880 records a High severity (CVSS 7.5) vulnerability in OpenFeature evaluation API reads input data with no bounds. The current sources do not mark it as known exploited. The current feed maps Grafana/Grafana (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 7.5. 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 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Grafana/Grafanageneric | >=v12.1.0 <v12.1.10 || >=v12.2.0 <v12.2.8 || >=v12.3.0 <v12.3.6 || >=v12.4.0 <v12.4.2 | v12.1.10, v12.2.8, v12.3.6, v12.4.2 |
Published upstream
Mar 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-27880 records a High severity (CVSS 7.5) vulnerability in OpenFeature evaluation API reads input data with no bounds. The current sources do not mark it as known exploited. The current feed maps Grafana/Grafana (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 7.5. 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 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Grafana/Grafanageneric | >=v12.1.0 <v12.1.10 || >=v12.2.0 <v12.2.8 || >=v12.3.0 <v12.3.6 || >=v12.4.0 <v12.4.2 | v12.1.10, v12.2.8, v12.3.6, v12.4.2 |
Published upstream
Mar 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
Quoted source text, attributed separately from HOL analysis.