{"id":"CVE-2026-78847","aliases":["EUVD-2026-84241","GHSA-j9gx-vjm3-jpmm"],"status":"published","title":"An issue in gray-matter All versions (verified on 4.0.3) allows the JavaScript engine in lib...","description":"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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00596,"percentile":0.48974,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-95"],"published":"2026-09-21T00:00:00Z","modified":"2026-09-22T20:00:03Z","references":[{"url":"https://github.com/jonschlinkert/gray-matter/issues/182","tags":["exploit"]},{"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"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78847"},{"url":"https://github.com/advisories/GHSA-j9gx-vjm3-jpmm"}],"sources":{"cve":[{"id":"CVE-2026-78847","description":"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.","status":"published","published":"2026-09-21T00:00:00Z","modified":"2026-09-22T15:12:53.387Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T13:34:59.78118Z"}],"euvd":[{"id":"EUVD-2026-84241","description":"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.","status":"published","published":"2026-09-21T00:00:00Z","modified":"2026-09-22T15:12:53Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:02.937716Z"}],"ghsa":[{"id":"GHSA-j9gx-vjm3-jpmm","title":"An issue in gray-matter All versions (verified on 4.0.3) allows the JavaScript engine in lib...","description":"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.","status":"published","published":"2026-09-22T00:30:54Z","modified":"2026-09-22T18:34:29Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T15:12:18.539197Z"}],"nvd":[{"id":"CVE-2026-78847","description":"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.","status":"published","published":"2026-09-21T22:16:58.863Z","modified":"2026-09-22T20:00:03.713Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T14:12:50.368368Z"}]}}