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🛡️ CVE-2026-44301 — hugo

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-22 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Hugo's Node tool execution allows file system access outside the project directory

Impact

When building a Hugo site that uses Node-based asset pipelines (PostCSS, Babel, TailwindCSS), Hugo invoked the configured Node tools without restrictions on file system access. As a result, executing hugo against an untrusted site could allow code running through these tools to read or write files outside the project's working directory.

Users who do not use PostCSS, Babel, or TailwindCSS, or who only build trusted sites, are not affected.

Patches

From v0.161.0, Hugo runs Node tools under Node's permission model with strict defaults: No write access and only read access to the site source directories and files.

Workarounds

Block these tools in [security.exec.allow](https://gohugo.io/configuration/security/).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: Required — someone has to click, open or visit something.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2026-44301 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

CVE-2026-44301 is recorded against 2 packages.

  • github.com/gohugoio/hugo
  • hugo (from 0.43 up to 0.161.0)

Timeline and source

Published on 24 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Advisory)
github.com (Fix)

Other advisories for this package

github.com/gohugoio/hugo has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-22: Path Traversal) in other software:

CVE-2026-44301 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE CWE-22
Public Exploit ✅ No
Source NVD
Published 2026-07-24
Updated 2026-08-20
Modified 2026-07-24

Affected Packages

Software From version Fixed in
github.com/gohugoio/hugo — —
hugo 0.43 0.161.0

Similar Threats

Site Security Check

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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