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22 lines
1.1 KiB
Markdown
22 lines
1.1 KiB
Markdown
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---
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date: 2020-12-19
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title: "Hugo 0.79.1: One Security Patch for Hugo on Windows"
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description: "Disallow running of e.g. Pandoc in the current directory."
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categories: ["Releases"]
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images:
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- images/blog/hugo-bug-poster.png
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---
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Hugo depends on Go's `os/exec` for certain features, e.g. for rendering of Pandoc documents if these binaries are found in the system `%PATH%` on Windows. However, if a malicious file with the same name (`exe` or `bat`) was found in the current working directory at the time of running `hugo`, the malicious command would be invoked instead of the system one.
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Windows users who ran `hugo` inside untrusted Hugo sites were affected.
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The origin of this issue comes from Go, see https://github.com/golang/go/issues/38736
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We have fixed this in Hugo by [using](https://github.com/gohugoio/hugo/commit/4a8267d64a40564aced0695bca05249da17b0eab) a patched version of `exec.LookPath` from https://github.com/cli/safeexec (thanks to [@mislav](https://github.com/mislav) for the implementation).
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Thanks to [@Ry0taK](https://github.com/Ry0taK) for the bug report.
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