CVE-2026-35166
Hugo: Certain markdown links are not properly escaped
5.4
MEDIUM
CVSS 3.1
EPSS 0.01%
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.
How to fix CVE-2026-35166
To remediate CVE-2026-35166, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 0.159.2 or later
Is CVE-2026-35166 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- >= 0.60.0, < 0.159.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |