Bug 2476862 (CVE-2026-44301)

Summary:	CVE-2026-44301 hugo: Hugo: Arbitrary file read/write via unrestricted file system access in Node-based asset pipelines
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anjoseph, eglynn, jjoyce, jprabhak, jpretori, jschluet, lchilton, lhh, mburns, mgarciac, rhel-process-autobot, sfeifer, watson-tool-maintainers, wtam
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in Hugo. When building a Hugo site that uses Node-based asset pipelines (such as PostCSS, Babel, or TailwindCSS), Hugo invoked the configured Node tools without restrictions on file system access. This could allow code running through these tools to read or write files outside the project's working directory when executing Hugo against an untrusted site.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-12 22:02:20 UTC

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.