Critical severity9.8NVD Advisory· Published Sep 21, 2026· Updated Sep 22, 2026

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Jonschlinkert/gray-matterllm-create
Range: All versions (verified on 4.0.3)

Patches

Vulnerability mechanics

References

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

News mentions

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cvss	0.637
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000