{"id":"EUVD-2026-41918","revision":"6bc103372b574b39abf794ada9245063","records":[{"revision":"6bc103372b574b39abf794ada9245063","observedAt":"2026-11-01T11:22:41.546+00:00","statement":{"source":"euvd","id":"EUVD-2026-41918","aliases":["CVE-2026-58404"],"title":"Hugo is a static site generator. From v0.162.0 through v0.163.0, the default security.http.urls policy denies requests to loopback, internal, and cloud-metadata IPv4 literals, but the deny rule only matched dotted-decimal notation, so alter…","description":"Hugo is a static site generator. From v0.162.0 through v0.163.0, the default security.http.urls policy denies requests to loopback, internal, and cloud-metadata IPv4 literals, but the deny rule only matched dotted-decimal notation, so alternate IPv4 encodings of the same addresses, including integer, hex, or octal, passed the policy. When a template passes an untrusted or data-derived URL to resources.GetRemote and the host platform uses the cgo system resolver, these encodings resolve to the blocked address, allowing build-time server-side requests to loopback and internal services, including the cloud-metadata endpoint in hosted or CI builds; the same check is reused on redirects, so the gap also applies to each redirect hop. This issue is fixed in v0.163.1.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N","score":4.6,"severity":null}],"references":["https://github.com/gohugoio/hugo/security/advisories/GHSA-r46f-3rpw-hxrv","https://github.com/gohugoio/hugo/pull/15020","https://github.com/gohugoio/hugo/commit/a00b5c72ac57afe26df6688ece3ca544a56df372","https://github.com/gohugoio/hugo/releases/tag/v0.163.1"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-41918","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 6, 2026, 7:16:15 PM","dateUpdated":"Jul 7, 2026, 3:08:53 PM"},"relatedAdvisories":[{"id":"RHSA-2026:36862","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-50133","CVE-2026-58402","CVE-2026-58403","CVE-2026-58404"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-41918","identifiers":["EUVD-2026-41918","CVE-2026-58404"]},"retained":false,"historicalAffected":[]}],"coverage":[]}