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

Quick assessment

Affected
gohugoio hugo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

gohugo hugo是gohugo团队开源的一个生成静态网站的框架。 GoHugo Hugo 0.123.0版本至0.161.1版本存在后置链接漏洞，该漏洞源于RootMappingFs.statRoot使用Stat（跟踪符号链接）而不是Lstat，可能导致本地挂载中符号链接读取任意文件。

AI Predicted 5.3 Difficulty: Easy EPSS 0.41% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
gohugoio hugo >= 0.123.0, < 0.162.0 affected
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I. Basic Information for CVE-2026-50135

Vulnerability Information
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Vulnerability Title
Hugo: Symlink confinement bypass in resources.Get
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
GoHugo Hugo 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
gohugo hugo是gohugo团队开源的一个生成静态网站的框架。 GoHugo Hugo 0.123.0版本至0.161.1版本存在后置链接漏洞，该漏洞源于RootMappingFs.statRoot使用Stat（跟踪符号链接）而不是Lstat，可能导致本地挂载中符号链接读取任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
gohugoio hugo >= 0.123.0, < 0.162.0 -

II. Public POCs for CVE-2026-50135

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III. Intelligence Information for CVE-2026-50135

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Patches & Fixes for CVE-2026-50135 (1)

Vendor Advisories for CVE-2026-50135 (1)

Vendor Pages for CVE-2026-50135 (1)

Same Patch Batch · gohugoio · 2026-07-06 · 6 CVEs total

CVE-2026-58404 Hugo security.http.urls deny rules bypassed by alternate IPv4 encodings
CVE-2026-58402 Hugo default code block renderer XSS via unescaped code-fence language
CVE-2026-58403 Hugo symlink confinement bypass in os.ReadFile
CVE-2026-50134 Hugo: security.http.urls allow-list bypass via HTTP redirects
CVE-2026-50133 Hugo: XSS via text/html content files

IV. Related Vulnerabilities

Same product: hugo
Same vendor: gohugoio
Same weakness: CWE-59

V. Comments for CVE-2026-50135

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