{"id":"EUVD-2026-112310","revision":null,"records":[{"revision":"38bd64cab38c478dae845a479c5faa31","observedAt":"2026-11-02T21:57:16.98+00:00","statement":{"source":"cve-program","id":"CVE-2026-118247","aliases":[],"title":"Highcharts Dashboards / Grid Pro: `DataTable.setCell` and column writers treat `__proto__` as an existing column.","description":"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.","state":0,"publishedAt":"2026-10-28T17:50:59.526+00:00","modifiedAt":"2026-11-02T20:27:24.621+00:00","affected":[{"ecosystem":"Vendor product","name":"highcharts","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"highcharts\",\n                    \"product\": \"highcharts\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 13.1.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"dashboards","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@highcharts\",\n                    \"product\": \"dashboards\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.0.0, < 4.2.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"grid-pro","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@highcharts\",\n                    \"product\": \"grid-pro\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.0.0, < 3.2.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":6.9,"severity":"MEDIUM"}],"references":["https://github.com/highcharts/highcharts/security/advisories/GHSA-c75x-9x9h-28rm","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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-118247","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-118247","identifiers":["CVE-2026-118247"]},"retained":false,"historicalAffected":[]},{"revision":"83c0d725e846439bbcc635f7942ff3f3","observedAt":"2026-11-06T00:43:27.3+00:00","statement":{"source":"euvd","id":"EUVD-2026-112310","aliases":["CVE-2026-118247","GHSA-c75x-9x9h-28rm"],"title":"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…","description":"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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"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","score":6.9,"severity":null}],"references":["https://github.com/highcharts/highcharts/security/advisories/GHSA-c75x-9x9h-28rm","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"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112310","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 28, 2026, 5:50:59 PM","dateUpdated":"Nov 2, 2026, 8:27:24 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-112310","identifiers":["EUVD-2026-112310","CVE-2026-118247","GHSA-c75x-9x9h-28rm"]},"retained":false,"historicalAffected":[]},{"revision":"833b27e8096c404cbd1c53196ca5ee31","observedAt":"2026-11-05T23:38:43.141+00:00","statement":{"source":"nvd","id":"CVE-2026-118247","aliases":[],"title":"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…","description":"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.","state":0,"publishedAt":"2026-10-28T18:17:15.69+00:00","modifiedAt":"2026-11-02T21:17:26.16+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.9,"severity":"MEDIUM"}],"references":["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"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-118247","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-1321"],"productCriteria":[],"sourceDates":{"published":"2026-10-28T18:17:15.690","lastModified":"2026-11-02T21:17:26.160"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-118247","identifiers":["CVE-2026-118247"]},"retained":false,"historicalAffected":[]},{"revision":"07e735b89ba741998c170bfd8acf2a25","observedAt":"2026-10-28T20:55:42.711+00:00","statement":{"source":"osv","id":"GHSA-c75x-9x9h-28rm","aliases":["CVE-2026-118247"],"title":"Highcharts Dashboards / Grid Pro: `DataTable.setCell` and column writers treat `__proto__` as an existing column.","description":"### Impact\nWhen a single cell value is written to a data table, the column id is used as a key on the table's column collection without filtering, so a column id of `__proto__` resolves to `Object.prototype`, is taken for an existing column, and the write lands at the row index on `Object.prototype`; a column id of `constructor` writes onto the `Object` constructor in the same way. In Dashboards releases that still supported column aliases, the id is first resolved through the alias map, so a literal `__proto__` id is redirected harmlessly there, while an alias whose target is `__proto__`, which the connector's data table options accept, reaches the same write. An attacker who controls the column id can thereby set integer-keyed properties on `Object.prototype`, one per row index, holding the written value; named properties cannot be reached through these paths, because the row index is a number. The integer keys still affect every object in the page: reading an out-of-range index on any array or plain object returns the injected value, and `for...in` over any object yields the injected keys, so unrelated code can take branches it should not using attacker-supplied data, and rendering can fail as a side effect. In Dashboards the write is reached through the Highcharts component's connector write-back, which is enabled by default through `allowConnectorUpdate` and takes the column id from the component's `columnAssignment`, or in the earliest releases from the series name, when a point is updated; in Grid Pro it is reached through cell editing in earlier releases and remains reachable through the public `DataTable` API. Exploitation requires that untrusted data reach the board or Grid configuration and that a point be updated or a cell edited, or that the application write a cell with an untrusted column id.\n\nConsequences beyond disruption depend on the consuming application.\n\n### Workarounds\nTwo measures are needed. The first closes the paths that reach `Object.prototype`; the second covers table construction, which cannot be patched from outside the library.\n\n#### 1. Strip unsafe keys from untrusted column data\n\nApply this wherever column data enters your application, before it is handed to a grid, board or `DataTable`. This is the only measure that covers the `DataTable` constructor.\n\n```js\nfunction stripUnsafeColumnIds(columns) {\n    for (const key of ['__proto__', 'constructor']) {\n        if (Object.prototype.hasOwnProperty.call(columns, key)) {\n            delete columns[key];\n        }\n    }\n\n    return columns;\n}\n\nGrid.grid('container', {\n    data: { columns: stripUnsafeColumnIds(untrustedColumns) }\n});\n```\n\n#### 2. Patch the DataTable methods\n\nNeeded if your application passes column ids that originate from untrusted input to `setCell`, `changeColumnId` or `setColumns`. Run it once at startup.\n\n```js\n{\n    const { DataTable } = Grid; // Or Dashboards\n\n    if (!DataTable) {\n        throw new Error('Patch loaded before Grid');\n    }\n\n    const unsafe = (id) => id === '__proto__' || id === 'constructor';\n\n    const setCell = DataTable.prototype.setCell;\n    DataTable.prototype.setCell = function (columnId, ...rest) {\n        if (unsafe(columnId)) {\n            return;\n        }\n        return setCell.call(this, columnId, ...rest);\n    };\n\n    const changeColumnId = DataTable.prototype.changeColumnId;\n    DataTable.prototype.changeColumnId = function (columnId, newColumnId) {\n        if (unsafe(columnId) || unsafe(newColumnId)) {\n            return false;\n        }\n        return changeColumnId.call(this, columnId, newColumnId);\n    };\n\n    const setColumns = DataTable.prototype.setColumns;\n    DataTable.prototype.setColumns = function (columns, ...rest) {\n        const safe = {};\n\n        for (const key of Object.keys(columns || {})) {\n            if (!unsafe(key)) {\n                safe[key] = columns[key];\n            }\n        }\n\n        return setColumns.call(this, safe, ...rest);\n    };\n}\n```\n\nFor npm, take `DataTable` from your import instead of the global — it is exported by Grid Lite, Grid Pro and Dashboards alike.\n\n### Obtaining the patched version\nThe patched releases are available from all the usual distribution channels. With npm, upgrade the affected package to the patched version listed above, for example `npm install @highcharts/dashboards@4.2.2`. If you load Highcharts Dashboards from a CDN, use a versioned URL, for example `https://code.highcharts.com/dashboards/4.2.2/dashboards.js`. For more on each installation method, see the [installation guide](https://www.highcharts.com/docs/dashboards/installation).","state":0,"publishedAt":"2026-10-28T19:55:37+00:00","modifiedAt":"2026-10-28T20:15:05.4543797+00:00","affected":[{"ecosystem":"npm","name":"@highcharts/dashboards","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.0.0"},{"kind":"fixed","version":"4.2.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@highcharts/grid-pro","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0"},{"kind":"fixed","version":"3.2.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/highcharts/highcharts/security/advisories/GHSA-c75x-9x9h-28rm","https://nvd.nist.gov/vuln/detail/CVE-2026-118247","https://github.com/highcharts/highcharts/commit/02dd9349aeb6f4cc9c98806120d917ed316b4c74","https://github.com/highcharts/highcharts","https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.2","https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0"],"sourceUrl":"https://github.com/advisories/GHSA-c75x-9x9h-28rm","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-c75x-9x9h-28rm","identifiers":["GHSA-c75x-9x9h-28rm","CVE-2026-118247"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-07T09:27:02.0881180+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-07T09:27:02.088118+00:00","lastSuccessAt":"2026-11-07T09:27:02.275552+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:02.2755528+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-bb5c9d5a08063ef076042e33dd72a7d0ffa4c4487efdcf3106e29ba55ec2ad57-119922d4652e19b255c332c622ccf0862cc635682e2e6107e0a24821a354707e","complete":true,"records":420779,"lastAttemptAt":"2026-11-07T09:27:01.2826732+00:00","lastSuccessAt":"2026-11-07T09:27:01.2301134+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:01.2826732+00:00","snapshotPublishedAt":"2026-11-07T09:18:48+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-b52a1e8adeec4da689c82b3880ed1f86","complete":true,"records":13631,"lastAttemptAt":"2026-11-07T09:38:22.8963621+00:00","lastSuccessAt":"2026-11-07T09:38:22.887+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:38:22.887+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-07T09:27:02.0881180+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-07T09:27:02.088118+00:00","lastSuccessAt":"2026-11-07T09:27:02.2763671+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:02.2763676+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-1262a9fa83024e28a1560dfc0c9cdf3c","complete":true,"records":13645,"lastAttemptAt":"2026-11-07T09:27:03.0678524+00:00","lastSuccessAt":"2026-11-07T06:27:08.533+00:00","error":null,"lastVerifiedAt":"2026-11-07T06:27:08.533+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-0eb4d6dde62dffacd040ad992d4fd5a65cd7d0dc5f5f4cfa8b41967fc6f9ca5f","complete":true,"records":9914,"lastAttemptAt":"2026-11-07T09:27:01.6721049+00:00","lastSuccessAt":"2026-11-06T20:10:36.6450506+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:01.6721049+00:00","snapshotPublishedAt":"2026-11-06T20:02:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-07T09:27:01.4581125+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:01.4581125+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-335633e78a15c9cde10a6025895b5617717087fb945489ae7e15d377bacf34a9","complete":true,"records":3055,"lastAttemptAt":"2026-11-07T09:27:02.0484184+00:00","lastSuccessAt":"2026-11-06T16:03:00.7615789+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:02.0484184+00:00","snapshotPublishedAt":"2026-11-06T16:02:48+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-a0b728bc1c5526b5429930c00621636eba8655069c176697c3080f8377619ad7","complete":true,"records":231291,"lastAttemptAt":"2026-11-07T09:27:01.5654151+00:00","lastSuccessAt":"2026-11-07T00:28:51.1983528+00:00","error":null,"lastVerifiedAt":"2026-11-07T09:27:01.5654151+00:00","snapshotPublishedAt":"2026-11-06T23:33:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}