{"id":"EUVD-2026-112302","revision":"a3d22dae094c4754a2048134c418b087","records":[{"revision":"a3d22dae094c4754a2048134c418b087","observedAt":"2026-11-01T23:02:37.738+00:00","statement":{"source":"euvd","id":"EUVD-2026-112302","aliases":["CVE-2026-118243","GHSA-jqgh-w3cc-7jqw"],"title":"Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards stores DataCursor listener and state maps in plain objects keyed by DataTable ID. A __proto__ table ID supplied through dataPool conn…","description":"Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards stores DataCursor listener and state maps in plain objects keyed by DataTable ID. A __proto__ table ID supplied through dataPool connector configuration resolves to Object.prototype, and sync registration creates an enumerable property there whose suffix can be influenced through the sync group option. The property is visible on every object, and lasting sync states can throw and stop features such as extremes synchronization. Exploitation requires untrusted dashboard configuration and an enabled component sync, but no user interaction beyond loading the board. This issue is fixed in 4.2.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:L/SI:L/SA:L","score":5.3,"severity":null}],"references":["https://github.com/highcharts/highcharts/security/advisories/GHSA-jqgh-w3cc-7jqw","https://github.com/highcharts/highcharts/commit/ade5a41a700212f09133223ca990a3737d1d9ec6","https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.2"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112302","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 28, 2026, 5:33:31 PM","dateUpdated":"Oct 28, 2026, 5:33:31 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-112302","identifiers":["EUVD-2026-112302","CVE-2026-118243","GHSA-jqgh-w3cc-7jqw"]},"retained":false,"historicalAffected":[]}],"coverage":[]}