CVE-2026-118254
Highcharts Grid: pagination language options are parsed as HTML
Highcharts JS is a JavaScript charting library based on SVG. From 2.0.0 until 3.2.0, Highcharts Grid writes pagination language strings into the DOM as markup instead of text. An attacker who controls the Grid language configuration can provide elements with event handlers, which execute in the hosting page origin when pagination controls render. Exploitation requires pagination to be enabled but does not require additional user interaction. This issue is fixed in 3.2.0.
Fixes and workarounds
Fix
@highcharts/grid-lite (npm): OSV reports a fixed version 3.2.0. Check the advisory for supported release branches.
Source: OSV GHSA-r5wg-q8fc-p6w2Fix
@highcharts/grid-pro (npm): OSV reports a fixed version 3.2.0. Check the advisory for supported release branches.
Source: OSV GHSA-r5wg-q8fc-p6w2Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| highcharts highcharts |
< 13.0.0-beta.2 (affected) | CNA: GitHub_M |
| grid-lite @highcharts |
>= 2.0.0, < 3.2.0 (affected) | CNA: GitHub_M |
| grid-pro @highcharts |
>= 2.0.0, < 3.2.0 (affected) | CNA: GitHub_M |
@highcharts/grid-lite@highcharts/grid-lite
npm |
≥ 2.0.0; < 3.2.0 (affected, semver); OSV events: introduced 2.0.0; fixed 3.2.0Source events (semver)Other versions: unaffected |
OSV GHSA-r5wg-q8fc-p6w2 |
@highcharts/grid-pro@highcharts/grid-pro
npm |
≥ 2.0.0; < 3.2.0 (affected, semver); OSV events: introduced 2.0.0; fixed 3.2.0Source events (semver)Other versions: unaffected |
OSV GHSA-r5wg-q8fc-p6w2 |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.6 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/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-r5wg-q8fc-p6w2CNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/highcharts/highcharts/commit/1e8ded84d52191883965641b863cf0c73eb759aaCNA: GitHub_M · x_refsource_MISC
- https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0CNA: GitHub_M · x_refsource_MISC
- https://github.com/advisories/GHSA-r5wg-q8fc-p6w2OSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-r5wg-q8fc-p6w2OSV / GitHub Security Advisories · osv
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.