{"id":"CVE-2026-118249","revision":"a2938247ba0742368459e7dc3b640f48","records":[{"revision":"a2938247ba0742368459e7dc3b640f48","observedAt":"2026-11-05T23:38:43.141+00:00","statement":{"source":"nvd","id":"CVE-2026-118249","aliases":[],"title":"Highcharts JS is a JavaScript charting library based on SVG. From 13.0.0 until 13.1.0, Highcharts builds series data columns by using point option keys directly as column IDs. Own enumerable __proto__ and constructor keys from parsed point …","description":"Highcharts JS is a JavaScript charting library based on SVG. From 13.0.0 until 13.1.0, Highcharts builds series data columns by using point option keys directly as column IDs. Own enumerable __proto__ and constructor keys from parsed point objects can therefore direct integer-indexed writes to Object.prototype or the Object constructor. The inherited values affect reads and for-in enumeration across the page and can disrupt rendering or alter consuming application behavior without user interaction beyond rendering the chart. This issue is fixed in 13.1.0.","state":0,"publishedAt":"2026-10-28T18:17:16.273+00:00","modifiedAt":"2026-10-29T21:17:15.3+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.2,"severity":"HIGH"}],"references":["https://github.com/highcharts/highcharts/commit/d3357705c8f348904441327e32f50ab528c3a205","https://github.com/highcharts/highcharts/pull/25321","https://github.com/highcharts/highcharts/releases/tag/v13.1.0","https://github.com/highcharts/highcharts/security/advisories/GHSA-gfvx-2c2g-38wq"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-118249","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-1321"],"productCriteria":[],"sourceDates":{"published":"2026-10-28T18:17:16.273","lastModified":"2026-10-29T21:17:15.300"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-118249","identifiers":["CVE-2026-118249"]},"retained":false,"historicalAffected":[]}],"coverage":[]}