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.
Critical · 9.8
CVE-2026-78847
EUVD-2026-84241GHSA-j9gx-vjm3-jpmm
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 …
Published Sep 21, 2026 · Updated Sep 22, 2026 · Assigned by mitre