{"id":"EUVD-2026-112310","revision":"323dd3de7cb94a538cdc771f78c12f2e","records":[{"revision":"323dd3de7cb94a538cdc771f78c12f2e","observedAt":"2026-11-01T23:02:42.369+00:00","statement":{"source":"euvd","id":"EUVD-2026-112310","aliases":["CVE-2026-118247","GHSA-c75x-9x9h-28rm"],"title":"Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until Dashboards 4.2.2, and from 2.0.0 until Grid Pro 3.2.0, Highcharts DataTable single-cell writers use an untrusted column ID as a key without rejecting __proto__ or…","description":"Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until Dashboards 4.2.2, and from 2.0.0 until Grid Pro 3.2.0, Highcharts DataTable single-cell writers use an untrusted column ID as a key without rejecting __proto__ or constructor. DataTable.setCell, including Dashboards connector write-back and Grid Pro editing paths, can therefore write integer-indexed values onto Object.prototype or the Object constructor. In Dashboards releases with column aliases, a literal __proto__ ID is redirected by the alias map, while an alias targeting __proto__ reaches the unsafe write; later releases without aliases accept the unsafe ID directly. Those inherited values affect array and object reads and for-in enumeration throughout the page, which can alter application control flow or disrupt rendering. Exploitation requires control of the table or component column ID and a cell, point, or API write. This issue is fixed in Dashboards 4.2.2 and Grid Pro 3.2.0.","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:A/VC:N/VI:L/VA:H/SC:L/SI:L/SA:L","score":6.9,"severity":null}],"references":["https://github.com/highcharts/highcharts/security/advisories/GHSA-c75x-9x9h-28rm","https://github.com/highcharts/highcharts/commit/02dd9349aeb6f4cc9c98806120d917ed316b4c74","https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.2","https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112310","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 28, 2026, 5:50:59 PM","dateUpdated":"Oct 28, 2026, 5:50:59 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-2026-112310","identifiers":["EUVD-2026-112310","CVE-2026-118247","GHSA-c75x-9x9h-28rm"]},"retained":false,"historicalAffected":[]}],"coverage":[]}