CVE-2026-109596

Hugo from v0.162.0 before v0.167.0 Symlink File Disclosure via Nested Mount Ancestor

State: Published
Severity: 6.7 Medium
Published: Oct 12, 2026
Updated: Oct 14, 2026
Reserved: Oct 12, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.7 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-59 Improper Link Resolution Before File Access ('Link Following')

Affected Products

Product	Versions
hugogohugoio	0.162.0 to before 0.167.0Affected 0.167.0Not affected

References

GitHub Security Advisory (GHSA-6c8w-mpp8-9w47)vendor-advisory
VulnCheck Advisory: Hugo from v0.162.0 before v0.167.0 Symlink File Disclosure via Nested Mount Ancestorthird-party-advisory

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