Medium severity · published Jul 6, 2026
CVE-2026-50135
Hugo: Symlink confinement bypass in resources.Get
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
Hugo is a static site generator. From 0.123.0 to 0.161.1, a regression made RootMappingFs.statRoot use Stat (follows symlinks) instead of Lstat , so a direct resources.Get of a symlink pointing outside its mount returned the target's contents — letting a symlink planted in a local mount (e.g. a vendored themes/ theme) read arbitrary files accessible to the Hugo user. Go-module themes from GitHub (symlinks stripped) and directory walks were unaffected. Fixed in 0.162.0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HU
hugo · gohugoio
>= 0.123.0, < 0.162.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50135
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-50135
Patch
https://github.com/gohugoio/hugo/commit/f8b5fa09a64950c32b803821ede411ebfe772b7a
Product
https://github.com/gohugoio/hugo/releases/tag/v0.162.0
Patch
https://github.com/gohugoio/hugo/security/advisories/GHSA-fw87-fv5r-9fpw
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