{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100693","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-26T02:37:41.037Z","datePublished":"2026-09-26T13:23:51.556Z","dateUpdated":"2026-09-26T13:23:51.556Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-26T13:23:51.556Z"},"datePublic":"2026-09-09T00:00:00.000Z","title":"Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Handling of Case Sensitivity","cweId":"CWE-178","type":"CWE"}]}],"affected":[{"vendor":"gohugoio","product":"hugo","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/gohugoio/hugo","versions":[{"version":"0.162.0","status":"affected","versionType":"semver","lessThan":"0.166.0"},{"version":"0.166.0","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gohugo:hugo:*:*:*:*:*:*:*:*","versionStartIncluding":"0.162.0","versionEndExcluding":"0.166.0"}]}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"references":[{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-pmrv-x7gp-2rjw","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-pmrv-x7gp-2rjw)"},{"name":"VulnCheck Advisory: Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hugo-0.162.0-before-0.166.0-ip-literal-deny-rule-bypass"}],"credits":[{"lang":"en","value":"Reload3d","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}