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  4. CVE 2026 118251 highcharts javascript url in creditshref runs
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Back to active CVEs
High · CVSS 8.4CVE-2026-118251

Highcharts: javascript: URL in credits.href runs script on clickCVE-2026-118251

Answer in brief

CVE-2026-118251 records a High severity (CVSS 8.4) vulnerability in Highcharts: javascript: URL in credits.href runs script on click. The current sources do not mark it as known exploited. The current feed maps highcharts/highcharts (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 28, 2026Updated Oct 28, 2026Source checked Oct 28, 2026First seen by HOL Oct 28, 2026Material review Oct 28, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps highcharts/highcharts (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
highcharts/highchartsgeneric<11.4.9 || >=12.0.0 <12.6.1 || >=13.0.0 <13.1.111.4.9, 12.6.1, 13.1.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for highcharts/highcharts.
  2. 2Review the reported fix. Update highcharts/highcharts to 11.4.9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 28, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Highcharts JS is a JavaScript charting library based on SVG. Prior to 11.4.9, 12.6.1, and 13.1.0, Highcharts assigns credits.href to the window location when the credits label is clicked without checking the URL against the allowed-scheme list. An attacker who controls chart configuration can provide a javascript URL and run script in the origin of the hosting page when a user clicks the credits label. Highcharts Stock, Maps, and Gantt are included because they ship from the same package. This issue is fixed in 11.4.9, 12.6.1 and 13.1.0.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Highcharts Core: `breadcrumbs.style` keys become SVG event-handler attributesSame highcharts/highcharts package
  • Highcharts Dashboards / Grid Pro: `DataTable.setCell` and column writers treat `__proto__` as an existing column.Same highcharts/highcharts package
  • Highcharts Dashboards: editableOptions.propertyPath writes to Object.prototypeSame highcharts/highcharts package
  • Highcharts: series column construction writes to Object.prototypeSame highcharts/highcharts package
  • Highcharts: dotted series.keys paths write to Object.prototypeSame highcharts/highcharts package
  • Highcharts Dashboards: sidebar component labels are parsed as HTMLSame highcharts/highcharts package

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 28, 2026
References
4 linked sources
Open source record