CVE-2026-44301

Hugo: Node tool execution allows file system access outside the project directory

State: Published
Severity: 6.2 Medium
Published: May 12, 2026
Updated: May 13, 2026
Reserved: May 5, 2026

Description

Hugo is a static site generator. From 0.43 to before 0.161.0, when building a Hugo site that uses Node-based asset pipelines (PostCSS, Babel, TailwindCSS), Hugo invoked the configured Node tools without restrictions on file system access. As a result, executing hugo against an untrusted site could allow code running through these tools to read or write files outside the project's working directory. Users who do not use PostCSS, Babel, or TailwindCSS, or who only build trusted sites, are not affected. This vulnerability is fixed in 0.161.0.

Scores

CVSS	Score	Vector	Source
4.0	6.2 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
hugogohugoio	>= 0.43.0, < 0.161.0Affected

References

https://github.com/gohugoio/hugo/security/advisories/GHSA-x597-9fr4-5857

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