{"id":"CVE-2026-100693","published":"2026-09-26T14:16:54.007","lastModified":"2026-09-29T19:07:53.227","description":"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.","cvssScore":8.4,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-178"],"vendors":["gohugo"],"products":["hugo"],"references":[{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-pmrv-x7gp-2rjw","tags":["Vendor Advisory"]},{"url":"https://www.vulncheck.com/advisories/hugo-0.162.0-before-0.166.0-ip-literal-deny-rule-bypass","tags":["Third Party Advisory"]}],"exploitRefs":[{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-pmrv-x7gp-2rjw","tags":["Vendor Advisory"]}],"hasPoc":true,"ai":null}