Highcharts: dotted series.keys paths write to Object.prototype

影響: npm:highcharts >= 12.0.0, < 12.6.1 → 12.6.1, npm:highcharts >= 13.0.0, <= 13.0.2 → 13.1.0, npm:highcharts >= 6.1.0, < 11.4.9 → 11.4.9

A dot-separated key path taken from series.keys is followed without filtering the individual segments. An attacker who controls series.keys and the matching point data can use a path such as __proto__.polluted to set arbitrary properties on Object.prototype. The resulting properties are visible to all JavaScript running in the page, not only to the chart. No user interaction is required beyond rendering the chart. The injected properties are inert until other code on the page reads them, so con…

GitHub Advisory Databaseで読む

2026/10/29 04:56、GitHub Advisory Databaseが「Highcharts: dotted series.keys paths write to Object.prototype」を公開しました (種別: 脆弱性アドバイザリ)。重大度は「重要」(high) です。関連する技術: JavaScript / Node.js。CVE: CVE-2026-118250。