Highcharts Dashboards: `__proto__` data table id writes sync listeners to `Object.prototype`

影響: npm:@highcharts/dashboards >= 1.0.0, <= 4.2.1 → 4.2.2

The data cursor keeps its listener and state bookkeeping in plain objects keyed by data table id, so a table id of __proto__ supplied in the dataPool connector configuration resolves to Object.prototype when a sync registers its listeners, and the registration creates a property on Object.prototype named after the sync state and holding the internal listener array. The property name begins with a state prefix fixed by the library, to which the sync group option can append an attacker-chosen suf…

GitHub Advisory Databaseで読む

2026/10/29 04:55、GitHub Advisory Databaseが「Highcharts Dashboards: `__proto__` data table id writes sync listeners 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「警告」(medium) です。関連する技術: JavaScript / Node.js。CVE: CVE-2026-118243。