---
id: CVE-2026-100694
title: Hugo is a static site generator
summary: >-
  Hugo is a static site generator. In versions from v0.56.0 through v0.165.x,
  content files mapped to the text/org media type are rendered without escaping
  raw HTML: Org export blocks and @@html:...@@ snippets pass HTML through
  unescaped, …
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: gohugo
product: hugo
affected:
  - 'hugo >= 0.56.0, < 0.166.0'
patched:
  - hugo 0.166.0
published: '2026-09-26'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T16:17:00.753'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100694'
references:
  - url: 'https://github.com/gohugoio/hugo/security/advisories/GHSA-pq74-mj4h-cjq2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/hugo-before-0.166.0-cross-site-scripting-via-text-org
    label: disclosure@vulncheck.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100694.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-100694'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2541804'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-100694'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100694'
  - url: 'https://access.redhat.com/errata/RHSA-2026:66266'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00188
epssPercentile: 0.08375
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T15:05:06.488369Z'
ingestedAt: '2026-09-26T13:33:20.903Z'
---

## Overview

Hugo is a static site generator. In versions from v0.56.0 through v0.165.x, content files mapped to the text/org media type are rendered without escaping raw HTML: Org export blocks and @@html:...@@ snippets pass HTML through unescaped, resulting in cross-site scripting (XSS) in the generated site. An attacker who can supply or influence a content file under /content or the output of a content adapter can inject scripts that execute in the browsers of visitors to the affected pages. Only pages whose source file or content-adapter output declares the text/org media type are affected, and sites that fully trust all content sources are not impacted. Version v0.166.0 fixes the issue by introducing a security.allowContent allowlist that denies text/org by default; sites that intentionally author Org Mode content can opt back in with [security] allowContent = ['.*'].

## Affected

- `hugo >= 0.56.0, < 0.166.0`

## Remediation

Upgrade past the affected range:

- `hugo 0.166.0`

## Vendor advisories

- **RHSA-2026:66266** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:66266)
- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat OpenShift GitOps, Red Hat OpenStack Platform 18.0 · no fix planned: Red Hat Enterprise Linux 10, Red Hat OpenShift GitOps, Red Hat OpenStack Platform 18.0 · updated 2026-09-29 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100694.json)