## Highcharts Core: HTML text parsing falls back to unfiltered `innerHTML` during printing

- 種別: advisory
- 重大度: high
- 関連技術: nodejs
- CVE: CVE-2026-118244
- 公開日時: 2026-10-28T19:55:22.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-65hg-cf3f-5m39)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-65hg-cf3f-5m39

影響: npm:highcharts >= 12.0.0, < 12.6.1 → 12.6.1, npm:highcharts >= 13.0.0, <= 13.0.2 → 13.1.0
When the HTML text parser cannot obtain a document from DOMParser because the call throws, it falls back to assigning the raw markup to the innerHTML of an element created in the hosting document, and the allow-list is applied only to the resulting DOM afterwards. In Chromium the Trusted Types policy callback that the parser uses throws while a beforeprint handler is running, so if the hosting page re-renders the chart from a beforeprint handler, every HTML-rendered text option parsed at that m…