Vulnerability in Gohugoio Hugo
CVE-2026-109596
Hugo from v0.162.0 before v0.167.0 contains an improper link resolution vulnerability that lets malicious themes or modules expose files outside their root via nested-mount ancestor directories. Attackers controlling a theme can place a symlink or NTFS junction at a virtual ancestor directory, causing resources.Match to list and publish local files during builds.
Published .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/gohugoio/hugo/security/advisories/GHSA-6c8w-mpp8-9w47 (vendor-advisory)
- www.vulncheck.com/advisories/hugo-from-0.162.0-before-0.167.0-symlink-file-disc… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109596?
- CVE-2026-109596 is a medium-severity vulnerability in Gohugoio Hugo, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-10-12.
- How severe is CVE-2026-109596?
- Medium severity. CVSS v3 base score is 5.5 out of 10.