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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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History
Mon, 21 Sep 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| References |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-21T21:31:50.449Z
Reserved: 2026-08-25T00:00:00.000Z
Link: CVE-2026-78847
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