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CVE-2026-75926— Hugo 0.162.0 to 0.164.x - Node Permission Model Bypass via Default TailwindCSS Child-Process Grant

Quick assessment

Affected
gohugoio hugo
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gohugoio Hugo是Gohugoio团队开源的一款基于Go语言用于快速生成静态站点的框架。 Gohugoio hugo 0.162.0版本至0.165.0之前版本存在配置错误漏洞，该漏洞源于TailwindCSS配置加载时绕过Node.js权限模型，可能导致任意命令执行。

CVSS 8.6 · High EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
gohugoio hugo 0.162.0< 0.165.0 affected
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I. Basic Information for CVE-2026-75926

Vulnerability Information
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Vulnerability Title
Hugo 0.162.0 to 0.164.x - Node Permission Model Bypass via Default TailwindCSS Child-Process Grant
Source: CVE Program / CVE List V5
Vulnerability Description
Hugo 0.161.0 placed the Node asset pipelines behind the Node.js permission model so that code running through PostCSS, Babel, or TailwindCSS could not reach the file system outside the project directory. Hugo 0.162.0 added tailwindcss to the AllowChildProcess default in config/security/securityConfig.go, which makes nodePermissionArgs in common/hexec/exec.go append --allow-child-process whenever the tool being launched is named tailwindcss. TailwindCSS loads the site's tailwind.config.js through require at startup, so top-level code in that file executes inside the permitted Node process and can call child_process to spawn a shell. The spawned process is not a Node process and inherits none of the permission flags, so it runs with the full privileges of the account performing the build. Building a site whose theme, module, or starter template supplies the Tailwind configuration therefore yields arbitrary command execution rather than the confined file access the permission model was introduced to enforce. Hugo 0.165.0 removes tailwindcss from the default security.exec.allow list, so the tool is no longer launched under the default configuration.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的默认资源初始化
Source: CVE Program / CVE List V5
Vulnerability Title
Gohugoio hugo 配置错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gohugoio Hugo是Gohugoio团队开源的一款基于Go语言用于快速生成静态站点的框架。 Gohugoio hugo 0.162.0版本至0.165.0之前版本存在配置错误漏洞，该漏洞源于TailwindCSS配置加载时绕过Node.js权限模型，可能导致任意命令执行。
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 0.162.0 ~ 0.165.0 -

II. Public POCs for CVE-2026-75926

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6900 chars
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III. Intelligence Information for CVE-2026-75926

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Patches & Fixes for CVE-2026-75926 (3)

Vendor Advisories for CVE-2026-75926 (1)

Vendor Pages for CVE-2026-75926 (1)

IV. Related Vulnerabilities

Same product: hugo
Same vendor: gohugoio
Same weakness: CWE-1188

V. Comments for CVE-2026-75926

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