JLSEC-2026-793

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-793.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-793.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-793
Upstream
  • EUVD-2026-29862
Published
2026-07-25T03:41:43.685Z
Modified
2026-07-25T03:50:09.171568881Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
  • 6.2 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
Hugo's Node tool execution allows file system access outside the project directory
Details

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.

Database specific 
{
    "sources": [
        {
            "modified": "2026-06-17T10:50:27.980Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-44301",
            "published": "2026-05-12T22:16:36.843Z",
            "imported": "2026-07-24T13:46:36.633Z",
            "id": "CVE-2026-44301",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44301",
            "database_specific": {
                "status": "Analyzed"
            }
        },
        {
            "modified": "2026-05-13T16:42:58Z",
            "url": "https://api.github.com/advisories/GHSA-x597-9fr4-5857",
            "published": "2026-05-06T20:59:23Z",
            "imported": "2026-07-24T13:46:47.945Z",
            "id": "GHSA-x597-9fr4-5857",
            "html_url": "https://github.com/advisories/GHSA-x597-9fr4-5857"
        },
        {
            "modified": "2026-05-13T12:13:13Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-29862",
            "published": "2026-05-12T21:37:52Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-29862",
            "id": "EUVD-2026-29862",
            "imported": "2026-07-24T13:46:37.731Z"
        }
    ],
    "license": "CC-BY-4.0"
}
References
Credits

Affected packages

Julia / Hugo_jll

Package

Name
Hugo_jll
Purl
pkg:julia/Hugo_jll?uuid=c8420254-0ddf-5525-a2d3-3ad9242def7d

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.163.3+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-793.json"