CVE-2026-118249

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Source
https://cve.org/CVERecord?id=CVE-2026-118249
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-118249.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-118249
Aliases
Published
2026-10-28T17:57:18Z
Modified
2026-10-29T02:48:31Z
Severity
  • 7.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L CVSS Calculator
Summary
Highcharts: series column construction writes to Object.prototype
Details

Highcharts JS is a JavaScript charting library based on SVG. From 13.0.0 until 13.1.0, Highcharts builds series data columns by using point option keys directly as column IDs. Own enumerable proto and constructor keys from parsed point objects can therefore direct integer-indexed writes to Object.prototype or the Object constructor. The inherited values affect reads and for-in enumeration across the page and can disrupt rendering or alter consuming application behavior without user interaction beyond rendering the chart. This issue is fixed in 13.1.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1321"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118249.json"
}
References

Affected packages

Git / github.com/highcharts/highcharts

Affected ranges

Type
GIT
Repo
https://github.com/highcharts/highcharts
Events
Introduced
e44b0e19db9affdb85b667524365d268c314b957
Fixed
5d3e905ce2e2c75c174c06cf8dee0f00a5e02841
Fixed
d3357705c8f348904441327e32f50ab528c3a205
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "13.0.0"
                },
                {
                    "fixed":  "13.1.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "d3357705c8f348904441327e32f50ab528c3a205"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v13.1.0",
            "range":  [
                {
                    "fixed":  "5d3e905ce2e2c75c174c06cf8dee0f00a5e02841"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

dashboards-v4.*
dashboards-v4.2.1
dashboards-v4.2.2
grid-v3.*
grid-v3.1.0
grid-v3.2.0
v13.*
v13.0.0
v13.0.1
v13.0.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-118249.json"