MediumVulnerabilityCVE-2026-118243updated 29 Oct 2026, 15:14 UTC
Highcharts Dashboards: `__proto__` data table id writes sync listeners to `Object.prototype`
Fixed in @highcharts/dashboards 4.2.2Official, 2 sources
| Severity | MediumCVSS 5.3 of 10 |
|---|---|
| Being exploited? | UnclearNo reports either way yet |
| Fix available? | Yes@highcharts/dashboards 4.2.2 · since 28 Oct 2026 |
| How sure is this? | Official, 2 sourcesBacked by an official source |
Are you affected?
| Package / product | Affected versions | Fixed in |
|---|---|---|
| @highcharts/dashboards · npm | >= 1.0.0, <= 4.2.1 | 4.2.2 |
Timeline
- 28 Oct 2026, 18:17 UTCPublicly disclosed
- 28 Oct 2026, 19:55 UTCReported by GitHub Advisory · GitHub Advisory
- 28 Oct 2026, 19:56 UTCPicked up by Zero Radar
- 29 Oct 2026, 15:14 UTCNVD reported on it · NVD
Sources 2 reports, oldest first
Official vendor, government CERT or advisory database
- CVE-2026-118243NVD · 28 Oct 2026, 18:17 UTC
- Highcharts Dashboards: `__proto__` data table id writes sync listeners to `Object.prototype`GitHub Advisory · 28 Oct 2026, 19:55 UTC
Technical details
- ID
- CVE-2026-118243 · GHSA-jqgh-w3cc-7jqw
- CVSS
- 5.3 / 10
- Disclosed
- 28 Oct 2026, 18:17 UTC
- On Zero Radar
- 28 Oct 2026, 19:56 UTC (2 h after disclosure)
- Last change
- 29 Oct 2026, 15:14 UTC
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