CVE-2026-118247
- Source
- https://cve.org/CVERecord?id=CVE-2026-118247
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-118247.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-118247
- Aliases
- Published
- 2026-10-28T17:50:59Z
- Modified
- 2026-10-29T02:47:51Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:H/SC:L/SI:L/SA:L CVSS Calculator
- Summary
- Highcharts Dashboards / Grid Pro: `DataTable.setCell` and column writers treat `__proto__` as an existing column.
- Details
-
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until Dashboards 4.2.2, and from 2.0.0 until Grid Pro 3.2.0, Highcharts DataTable single-cell writers use an untrusted column ID as a key without rejecting proto or constructor. DataTable.setCell, including Dashboards connector write-back and Grid Pro editing paths, can therefore write integer-indexed values onto Object.prototype or the Object constructor. In Dashboards releases with column aliases, a literal proto ID is redirected by the alias map, while an alias targeting proto reaches the unsafe write; later releases without aliases accept the unsafe ID directly. Those inherited values affect array and object reads and for-in enumeration throughout the page, which can alter application control flow or disrupt rendering. Exploitation requires control of the table or component column ID and a cell, point, or API write. This issue is fixed in Dashboards 4.2.2 and Grid Pro 3.2.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1321" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118247.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118247.json
- https://github.com/highcharts/highcharts/commit/02dd9349aeb6f4cc9c98806120d917ed316b4c74
- https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.2
- https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0
- https://github.com/highcharts/highcharts/security/advisories/GHSA-c75x-9x9h-28rm
- https://nvd.nist.gov/vuln/detail/CVE-2026-118247
Affected packages
Git / github.com/highcharts/highcharts
Affected ranges
- Type
- GIT
- Repo
- https://github.com/highcharts/highcharts
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "13.1.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "1.0.0" }, { "fixed": "4.2.3" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "2.0.0" }, { "fixed": "3.2.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "02dd9349aeb6f4cc9c98806120d917ed316b4c74" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "dashboards-v4.2.2", "range": [ { "fixed": "a6d047d719460b0de3aa79adb032115dcdc79054" } ], "source": "REFERENCES_TAG" }, { "original_tag": "grid-v3.2.0", "range": [ { "fixed": "a7cf00c9b884aa7ebaad57d6dca4032bbc0409f3" } ], "source": "REFERENCES_TAG" } ] }