CVE-2026-78847
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.
- Published Sep 21, 2026
- CVSS 9.8 critical
- 0.6% chance of exploitation in the next 30 days (EPSS)