ZEIT Next.js 4 before 4.2.3 has Directory Traversal under the /_next request namespace.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Link | Tags |
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https://github.com/zeit/next.js/releases/tag/4.2.3 | third party advisory issue tracking |