---
id: CVE-2026-116796
title: >-
  Highcharts Core: `javascript:` URL in an `xlink:href` attribute survives text
  filtering and reaches exported charts
summary: >-
  Highcharts JS is a JavaScript charting library based on SVG. From 10.3.2 until
  11.4.9, 12.6.2, and 13.1.1, Highcharts accepts an SVG anchor xlink:href
  attribute without applying the allowed-scheme check used for href and src. An
  attacker…
severity: high
cvss: 7.2
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: highcharts
product: highcharts
affected:
  - 'highcharts >= 10.3.2, < 11.4.9'
  - 'highcharts >= 12.0.0, < 12.6.2'
  - 'highcharts >= 13.0.0, < 13.1.1'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-29T18:34:49.411209Z'
published: '2026-10-28'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T18:34:59.207Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116796'
references:
  - url: >-
      https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4
    label: >-
      https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4
  - url: >-
      https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88
    label: >-
      https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88
  - url: 'https://github.com/highcharts/highcharts/releases/tag/v13.1.1'
    label: 'https://github.com/highcharts/highcharts/releases/tag/v13.1.1'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-116796'
  - url: 'https://github.com/advisories/GHSA-mw4f-gj5x-6xr4'
tags:
  - cve.org
  - ghsa
  - npm
aliases:
  - GHSA-mw4f-gj5x-6xr4
ecosystem: npm
patched:
  - highcharts 11.4.9
  - highcharts 12.6.2
  - highcharts 13.1.1
epss: 0.00337
epssPercentile: 0.27161
ingestedAt: '2026-10-28T18:15:46.395Z'
---

## Overview

Highcharts JS is a JavaScript charting library based on SVG. From 10.3.2 until 11.4.9, 12.6.2, and 13.1.1, Highcharts accepts an SVG anchor xlink:href attribute without applying the allowed-scheme check used for href and src. An attacker who controls a chart text option can preserve a javascript URL in serialized chart output. When exported or server-rendered SVG is parsed again and a user activates the link, script runs in the origin of that document. This issue is fixed in 11.4.9, 12.6.2 and 13.1.1.

## Affected

- `highcharts >= 10.3.2, < 11.4.9`
- `highcharts >= 12.0.0, < 12.6.2`
- `highcharts >= 13.0.0, < 13.1.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-116796)

Affected packages:

- `highcharts >= 10.3.2, < 11.4.9`
- `highcharts >= 12.0.0, < 12.6.2`
- `highcharts >= 13.0.0, <= 13.1.0`

Patched in:

- `highcharts 11.4.9`
- `highcharts 12.6.2`
- `highcharts 13.1.1`

Source: https://github.com/advisories/GHSA-mw4f-gj5x-6xr4