CVE-2026-118246

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    CVE-2026-118246

    Published: 28 Oct 2026Last Modified: 5 Nov 2026

    Summary: Highcharts Core: `breadcrumbs.style` keys become SVG event-handler attributes

    Details: 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.

    References: https://github.com/highcharts/highcharts/releases/tag/v13.1.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118246.json, https://github.com/highcharts/highcharts/security/advisories/GHSA-35rr-xwfh-x789, https://nvd.nist.gov/vuln/detail/CVE-2026-118246, https://github.com/highcharts/highcharts/commit/b0fafdaaee7d0cac2ecfeb0eaf37b11cd40594ef

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- e44b0e19db9affdb85b667524365d268c314b957
    Fixed -81b13135ebaf3a2bedc9383b7f4aa84bde77eda6

    Affected versions

    v13.0.0
    v13.0.2
    v13.0.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-118246 | CVE-DB