CVE-2026-118250
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
64/100
Published: 2026-10-28
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
X
AT:
None
VC:
Low
VI:
High
VA:
High
Description
Highcharts JS is a JavaScript charting library based on SVG. From 6.1.0 until 11.4.9, 12.6.1, and 3.1.0, Highcharts follows dot-separated series.keys paths without filtering each segment. An attacker who controls series.keys and matching point data can use a path through __proto__ to assign arbitrary named properties to Object.prototype. Those properties are visible to all JavaScript in the page, and no user interaction is required beyond rendering the chart. This issue is fixed in 11.4.9, 12.6.1, and 3.1.0.
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| highcharts | highcharts | >= 6.1.0, < 11.4.9 |
| highcharts | highcharts | >= 12.0.0, < 12.6.1 |
| highcharts | highcharts | >= 13.0.0, < 13.1.0 |
| highcharts | highcharts | >= 6.1.0, < 11.4.9 |
| highcharts | highcharts | >= 12.0.0, < 12.6.1 |
| highcharts | highcharts | >= 13.0.0, < 13.1.0 |