JLSEC-2026-794

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-794.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-794.json
JSON Data
https://api.test.osv.dev/v1/vulns/JLSEC-2026-794
Upstream
  • EUVD-2026-41909
Published
2026-07-25T03:41:43.685Z
Modified
2026-07-25T18:53:51.574321878Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/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: XSS via text/html content files
Details

Commit: e41a06447d — Disallow HTML content by default Affected versions: all Hugo versions prior to v0.162.0. Fixed in: v0.162.0. Severity: Low to Medium, depending on threat model. Not an issue if you fully trust every file under /content and every content adapter you load.

Description. Hugo accepts content files in several markup formats. Files mapped to the text/html media type (typically .html files under /content, or pages produced by a content adapter that sets content.mediaType = "text/html") had their body emitted verbatim into the rendered page. A site that ingests HTML content from an untrusted source — for example, a CMS-backed editor, a content adapter pulling from an external API, or an automated import pipeline — could therefore be served stored cross-site scripting.

Mitigation. v0.162.0 introduces a security.allowContent whitelist with text/html denied by default. Sites that intentionally author HTML content can opt back in:

[security]
allowContent = ['.*']

This only affects pages whose source file (or content adapter output) declares an HTML media type; Markdown, AsciiDoc, Org, Pandoc and reStructuredText content is unaffected.

Database specific 
{
    "sources": [
        {
            "database_specific": {
                "status": "Analyzed"
            },
            "id": "CVE-2026-50133",
            "imported": "2026-07-24T13:46:36.652Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50133",
            "published": "2026-07-06T20:16:37.043Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-50133",
            "modified": "2026-07-08T03:08:33.383Z"
        },
        {
            "id": "GHSA-c54g-xjwj-8g82",
            "imported": "2026-07-24T13:46:39.963Z",
            "html_url": "https://github.com/advisories/GHSA-c54g-xjwj-8g82",
            "published": "2026-06-16T19:22:14Z",
            "url": "https://api.github.com/advisories/GHSA-c54g-xjwj-8g82",
            "modified": "2026-06-16T19:22:16Z"
        },
        {
            "id": "EUVD-2026-41909",
            "imported": "2026-07-24T13:46:37.731Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-41909",
            "published": "2026-07-06T19:31:18Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-41909",
            "modified": "2026-07-07T14:44:31Z"
        }
    ],
    "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-2026-794.json"