CVE-2026-118249

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/highcharts/highcharts/commit/d3357705c8f348904441327e32f50ab528c3a205
https://github.com/highcharts/highcharts/pull/25321
https://github.com/highcharts/highcharts/releases/tag/v13.1.0
https://github.com/highcharts/highcharts/security/advisories/GHSA-gfvx-2c2g-38wq

Configurations

No configuration.

History

28 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 18:17

Updated : 2026-10-29 21:17

NVD link : CVE-2026-118249

Mitre link : CVE-2026-118249

CVE.ORG link : CVE-2026-118249

JSON object : View

Products Affected

No product.

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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