CVE-2026-118249
Severity not reportedHighcharts JS is a JavaScript charting library based on SVG.
Highcharts JS is a JavaScript charting library based on SVG. From 13.0.0 until 13.1.0, Highcharts builds series data columns by using point option keys directly as column IDs. Own enumerable __proto__ and constructor keys from parsed point objects can therefore direct integer-indexed writes to Object.prototype or the Object constructor. The inherited values affect reads and for-in enumeration across the page and can disrupt rendering or alter consuming application behavior without user interaction beyond rendering the chart. This issue is fixed in 13.1.0.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/highcharts/highcharts/commit/d3357705c8f348904441327e32f50ab528c3a205 security-advisories@github.com
- https://github.com/highcharts/highcharts/pull/25321 security-advisories@github.com
- https://github.com/highcharts/highcharts/releases/tag/v13.1.0 security-advisories@github.com
- https://github.com/highcharts/highcharts/security/advisories/GHSA-gfvx-2c2g-38wq security-advisories@github.com