What’s Vulnerable › Vulnerabilities

CVE-2026-50135: Hugo: Symlink confinement bypass in resources.Get

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-06 · updated 2026-10-25
• Weakness: CWE-59

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.

Affected products

• gohugoio hugo: from 0.123.0 before 0.161.1 — fixed in 0.161.1

How to fix

Upgrade to a fixed version: gohugoio hugo 0.161.1. Check the vendor advisory for mitigations.

References

• https://github.com/gohugoio/hugo/commit/f8b5fa09a64950c32b803821ede411ebfe772b7a
• https://github.com/gohugoio/hugo/releases/tag/v0.162.0
• https://github.com/gohugoio/hugo/security/advisories/GHSA-fw87-fv5r-9fpw

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