CVE-2026-78847

CRITICALCVSS 9.8

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.

Timeline

Published:September 21st, 2026 10:16 PM

Last modified:September 22nd, 2026 8:00 PM

CVSS Scoring

CVSS v3: 9.8 (CRITICAL)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-95

References & Reports

Advisories, patches, and third-party reports

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

Source: NIST NVD · Data may lag official sources by up to one minute