CVE-2026-109574

Medium

Description

Hugo before v0.167.0 contains a path traversal vulnerability in css.Sass that allows malicious themes or modules to read files outside the project root through the Sass compiler's import fallback. Attackers can ship stylesheets with relative, absolute, or symlinked @import or @use targets to compile readable files into the published site CSS.

SeverityMedium

CVSS5.5

Exploit probability—

Product

Hugo

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-22Path traversal

How to fix

Update

gohugoio hugo0.167.0 or later

Vendor advisories

github.com/gohugoio/hugo/security/advisories/GHSA-3jfr-vjcq-7jvf

Affected products

Product	Affected versions	Fixed in
gohugoio hugo	v < 0.167.0	0.167.0

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