{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.162.0"
              },
              {
                "fixed": "0.166.0"
              },
              {
                "introduced": "v0.162.0"
              },
              {
                "fixed": "v0.166.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "076dfe13d0f789e3d9586b192f8f7f3329c26990"
            },
            {
              "fixed": "78400b4de8adc99273d3e674ed6c4d14c3bdf669"
            }
          ],
          "repo": "https://github.com/gohugoio/hugo",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pmrv-x7gp-2rjw"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-178"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100693.json"
  },
  "details": "Hugo versions from v0.162.0 before v0.166.0 contain a case-sensitive validation flaw in the security.http.urls IP-literal deny rule that allows attackers to bypass restrictions. Attackers can use mixed-case URL schemes in resources.GetRemote calls to fetch from restricted IP addresses like localhost.",
  "id": "CVE-2026-100693",
  "modified": "2026-09-28T03:30:59.208645193Z",
  "published": "2026-09-26T13:23:51.556Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100693.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gohugoio/hugo/security/advisories/GHSA-pmrv-x7gp-2rjw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100693"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/hugo-0.162.0-before-0.166.0-ip-literal-deny-rule-bypass"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass"
}