CVE-2026-78847

CRITICAL 9.8

CVSS Score

9.8

EPSS Score

0.2%

EPSS Percentile

7th

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.

Vendor	n/a
Product	n/a
Published	Sep 21, 2026
Last Updated	Sep 22, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/jonschlinkert/gray-matter/issues/182 github.com: https://github.com/jonschlinkert/gray-matter/issues/131 github.com: https://github.com/jonschlinkert/gray-matter/issues/112 blog.checo.cc: https://blog.checo.cc/en/posts/Security/1