CVE-2026-78847

State: Published
Severity: 9.8 Critical
Published: Sep 21, 2026
Updated: Sep 22, 2026
Reserved: Aug 25, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Affected Products

Product	Versions
n/an/a	n/aAffected

References

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

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