{"id":"ghsa-ghsa-jqgh-w3cc-7jqw","seq":2056983,"kind":"advisory","title":"Highcharts Dashboards: `__proto__` data table id writes sync listeners to `Object.prototype`","url":"https://github.com/advisories/GHSA-jqgh-w3cc-7jqw","permalink":"https://vulnpulse.app/items/ghsa-ghsa-jqgh-w3cc-7jqw","summary":"影響: npm:@highcharts/dashboards >= 1.0.0, <= 4.2.1 → 4.2.2\nThe 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…","severity":"medium","techs":["nodejs"],"cves":["CVE-2026-118243"],"tags":["GHSA-jqgh-w3cc-7jqw","@highcharts/dashboards"],"source":{"id":"ghsa","name":"GitHub Advisory Database"},"published_at":"2026-10-28T19:55:32.000Z","fetched_at":"2026-10-29T00:48:52.653Z"}