{
  "cveId": "CVE-2026-100691",
  "url": "https://patchblox.com/security/cve/CVE-2026-100691",
  "summary": "CVE-2026-100691 is fixed in hugo on 1 platform by DEBIAN-CVE-2026-100691 (version 0.166.0-1), released October 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "hugo: Hugo versions 0.75.0 through 0.165.x contain a stored cross-site scripting vulnerability: the syntax highlighter does...",
  "description": "Hugo versions 0.75.0 through 0.165.x contain a stored cross-site scripting vulnerability: the syntax highlighter does not escape the \u0060lineAnchors\u0060 option before passing it to Chroma, which writes the value verbatim into the \u0060id\u0060 and \u0060href\u0060 attributes of the generated line-number markup. A crafted \u0060lineAnchors\u0060 value supplied as a Markdown code fence attribute (or passed to the \u0060highlight\u0060 template function) results in unescaped HTML in the rendered page, allowing arbitrary JavaScript to execute in the browsers of visitors to the generated site. This affects sites that build and publish Markdown from untrusted contributors; Hugo\u0027s security model otherwise considers content trusted input. Fixed in 0.166.0, where the \u0060lineAnchors\u0060 value is HTML-escaped before being passed to Chroma.",
  "published": "2026-09-26T14:16:53Z",
  "severity": "",
  "epss": 0.00172,
  "epssPercentile": 0.06617,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "hugo",
      "release": "Debian 14",
      "fixedVersion": "0.166.0-1",
      "fix": "DEBIAN-CVE-2026-100691",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-100691",
      "released": "2026-10-12T23:16:46Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}