CVE-2026-35166

Hugo does not properly escape some Markdown links

State: Published
Severity: 5.3 Medium
Published: Apr 6, 2026
Updated: Apr 6, 2026
Reserved: Apr 1, 2026

Description

Hugo is a static site generator. From 0.60.0 to before 0.159.2, links and image links in the default markdown to HTML renderer are not properly escaped. Hugo users who trust their Markdown content or have custom render hooks for links and images are not affected. This vulnerability is fixed in 0.159.2.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
hugogohugoio	>= 0.60.0, < 0.159.2Affected

References

https://github.com/gohugoio/hugo/security/advisories/GHSA-mcv8-8m8x-48pg

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