CVE-2026-78847
JavaScript Engine in gray-matter Allows Arbitrary Code Execution
Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.
A vulnerability exists in the JavaScript engine of gray-matter when parsing front matter with a JavaScript language specifier. This could allow for arbitrary code execution if reachable, potentially affecting system data and service behavior. This is a concern for systems that process files using this library.