{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-78847", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-09-21T21:31:50.449Z", "dateReserved": "2026-08-25T00:00:00.000Z", "datePublished": "2026-09-21T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-21T21:31:50.449Z"}, "descriptions": [{"lang": "en", "value": "An issue in gray-matter All versions (verified on 4.0.3) allows the JavaScript engine in lib/engines.js using eval() to parse front matter when language is js/javascript.This allows arbitrary code execution."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/jonschlinkert/gray-matter/issues/182"}, {"url": "https://github.com/jonschlinkert/gray-matter/issues/131"}, {"url": "https://github.com/jonschlinkert/gray-matter/issues/112"}, {"url": "https://blog.checo.cc/en/posts/Security/1"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue in gray-matter All versions (verified on 4.0.3) allows the JavaScript engine in lib/engines.js using eval() to parse front matter when language is js/javascript.This allows arbitrary code execution."}], "id": "CVE-2026-78847", "lastModified": "2026-09-21T22:16:58.863", "metrics": {}, "published": "2026-09-21T22:16:58.863", "references": [{"source": "cve@mitre.org", "url": "https://blog.checo.cc/en/posts/Security/1"}, {"source": "cve@mitre.org", "url": "https://github.com/jonschlinkert/gray-matter/issues/112"}, {"source": "cve@mitre.org", "url": "https://github.com/jonschlinkert/gray-matter/issues/131"}, {"source": "cve@mitre.org", "url": "https://github.com/jonschlinkert/gray-matter/issues/182"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{"created": "2026-09-21T22:30:12.372184+00:00", "title": "gray-matter JavaScript Front Matter Evaluates User Input, Enabling Arbitrary Code Execution", "updated": "2026-09-21T22:30:12.372191+00:00", "vendors": [], "weaknesses": ["CWE-94"]}