CVE-2026-118255 Highcharts Grid: javascript: URL in credits.href runs script on click
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-118255?
CVE-2026-118255 is a high-severity vulnerability in @highcharts dashboards, published on 28 Oct 2026.
Official description
Highcharts JS is a JavaScript charting library based on SVG. From 2.0.0 until 3.2.0, Highcharts Grid applies credits.href to the credits link without validating the URL scheme. An attacker who controls Grid configuration can provide a javascript URL, and activating the credits link runs script in the origin of the hosting page with access to that application's data and session state.This issue is fixed in Grid Pro 3.2.0.
Weakness: CWE-79
Which versions are affected by CVE-2026-118255?
4 open source packages ship an affected version, including @highcharts/dashboards and @highcharts/grid-pro.
| Package | Affected | Fixed in |
|---|---|---|
@highcharts/dashboards npm | From 3.2.0 | 4.0.0 |
@highcharts/dashboards npm | From 3.2.0 | 4.0.0 |
@highcharts/grid-pro npm | From 2.0.0 | 3.2.0 |
@highcharts/grid-pro npm | From 2.0.0 | 3.2.0 |
How do I fix CVE-2026-118255?
Upgrade @highcharts/dashboards to 4.0.0 or later.
Is CVE-2026-118255 being exploited?
There is no known exploitation of CVE-2026-118255 in the wild and no public exploit code.
Sources
Also known as GHSA-6hgp-fmhr-mrg4.