Answer in brief
CVE-2026-118252 records a High severity (CVSS 8.4) vulnerability in Highcharts Dashboards: sidebar component labels are parsed as HTML. The current sources do not mark it as known exploited. The current feed maps @highcharts/dashboards (generic), highcharts/highcharts (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 8.4. 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 @highcharts/dashboards (generic), highcharts/highcharts (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| @highcharts/dashboardsgeneric | >=1.0.0 <4.2.3 | 4.2.3 |
| highcharts/highchartsgeneric | <13.0.0-beta.2 | 13.0.0-beta.2 |
Published upstream
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 28, 2026
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit-mode sidebar parses component language strings as HTML rather than inserting them as text. An attacker who controls the Dashboards language configuration can provide markup containing event handlers, which execute in the hosting page origin when a user opens the edit-mode sidebar and the affected labels render. This issue is fixed in 4.2.3.
Quoted source text, attributed separately from HOL analysis.