CVE-2026-118246
Highcharts Core: `breadcrumbs.style` keys become SVG event-handler attributes
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.
Fixes and workarounds
Fix
highcharts (npm): OSV reports a fixed version 11.4.9. Check the advisory for supported release branches.
Source: OSV GHSA-35rr-xwfh-x789Fix
highcharts (npm): OSV reports a fixed version 12.6.1. Check the advisory for supported release branches.
Source: OSV GHSA-35rr-xwfh-x789Fix
highcharts (npm): OSV reports a fixed version 13.1.0. Check the advisory for supported release branches.
Source: OSV GHSA-35rr-xwfh-x789Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| highcharts highcharts |
>= 10.0.0, < 11.4.9 (affected) >= 12.0.0, < 12.6.1 (affected) >= 13.0.0, < 13.1.1 (affected) |
CNA: GitHub_M |
highchartshighcharts
npm |
≥ 10.0.0; < 11.4.9 (affected, semver); OSV events: introduced 10.0.0; fixed 11.4.9Source events (semver)Other versions: unaffected |
OSV GHSA-35rr-xwfh-x789 |
highchartshighcharts
npm |
≥ 12.0.0; < 12.6.1 (affected, semver); OSV events: introduced 12.0.0; fixed 12.6.1Source events (semver)Other versions: unaffected |
OSV GHSA-35rr-xwfh-x789 |
highchartshighcharts
npm |
≥ 13.0.0; < 13.1.0 (affected, semver); OSV events: introduced 13.0.0; fixed 13.1.0Source events (semver)Other versions: unaffected |
OSV GHSA-35rr-xwfh-x789 |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.4 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N | CNA: GitHub_M |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/highcharts/highcharts/security/advisories/GHSA-35rr-xwfh-x789CNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/highcharts/highcharts/commit/b0fafdaaee7d0cac2ecfeb0eaf37b11cd40594efCNA: GitHub_M · x_refsource_MISC
- https://github.com/highcharts/highcharts/releases/tag/v13.1.0CNA: GitHub_M · x_refsource_MISC
- https://github.com/advisories/GHSA-35rr-xwfh-x789OSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-35rr-xwfh-x789OSV / GitHub Security Advisories · osv
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