Highcharts: dotted series.keys paths write to Object.prototype
High-risk advisory
CVE-2026-118250
Summary
Highcharts: dotted series.keys paths write to Object.prototype
Why it matters
GitHub has published a reviewed security advisory for highcharts. Prioritize it with other application dependency updates, especially because EPSS places it in the 30% percentile.
Operator check
Check whether highcharts is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.2. EPSS probability: 0.4%; percentile: 30%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.