Vulnerability Description
Highcharts JS is a JavaScript charting library based on SVG. From 10.0.0 until 11.4.9, 12.6.1, and 13.1.0, Highcharts applies breadcrumbs.style as SVG attributes rather than CSS and does not filter the attribute names. An attacker who controls chart configuration can provide event-handler keys through drilldown.breadcrumbs, navigation.breadcrumbs, or hierarchical series breadcrumb options. The keys become active handlers on the breadcrumb button and execute in the hosting page origin after the user navigates to a level and hovers over or activates the button. Styled-mode charts do not apply this option and are not affected. This issue is fixed in 11.4.9, 12.6.1 and 13.1.0.
Related Weaknesses (CWE)
References
- https://github.com/highcharts/highcharts/commit/b0fafdaaee7d0cac2ecfeb0eaf37b11c
- https://github.com/highcharts/highcharts/releases/tag/v13.1.0
- https://github.com/highcharts/highcharts/security/advisories/GHSA-35rr-xwfh-x789
FAQ
What is CVE-2026-118246?
CVE-2026-118246 is a documented vulnerability. Highcharts JS is a JavaScript charting library based on SVG. From 10.0.0 until 11.4.9, 12.6.1, and 13.1.0, Highcharts applies breadcrumbs.style as SVG attributes rather than CSS and does not filter th...
How severe is CVE-2026-118246?
CVSS scoring is not yet available for CVE-2026-118246. Check NVD for updates.
Is there a patch for CVE-2026-118246?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.