CVE-2026-58404

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{"affected": [{"affectedData": [{"product": "hugo", "vendor": "gohugoio", "versions": [{"status": "affected", "version": ">= v0.162.0, < v0.163.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gohugo:hugo:*:*:*:*:*:*:*:*", "matchCriteriaId": "1CB7366F-0554-4DD8-9B29-A06D72CB6070", "versionEndExcluding": "0.163.1", "versionStartIncluding": "0.162.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Hugo es un generador de sitios est\u00e1ticos. Desde la v0.162.0 hasta la v0.163.0, la pol\u00edtica predeterminada security.http.urls deniega las solicitudes a literales IPv4 de loopback, internos y de metadatos de la nube, pero la regla de denegaci\u00f3n solo coincid\u00eda con la notaci\u00f3n decimal con puntos, por lo que codificaciones IPv4 alternativas de las mismas direcciones, incluyendo entero, hexadecimal u octal, pasaban la pol\u00edtica. Cuando una plantilla pasa una URL no confiable o derivada de datos a resources.GetRemote y la plataforma anfitriona utiliza el resolvedor de sistema cgo, estas codificaciones se resuelven a la direcci\u00f3n bloqueada, permitiendo solicitudes del lado del servidor en tiempo de compilaci\u00f3n a servicios de loopback e internos, incluyendo el punto final de metadatos de la nube en compilaciones alojadas o de CI; la misma verificaci\u00f3n se reutiliza en las redirecciones, por lo que la brecha tambi\u00e9n se aplica a cada salto de redirecci\u00f3n. Este problema est\u00e1 solucionado en la v0.163.1."}], "id": "CVE-2026-58404", "lastModified": "2026-10-25T20:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58404", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-07T15:08:15.371330Z", "version": "2.0.3"}}]}, "published": "2026-07-06T20:16:38.307", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/gohugoio/hugo/commit/a00b5c72ac57afe26df6688ece3ca544a56df372"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking"], "url": "https://github.com/gohugoio/hugo/pull/15020"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/gohugoio/hugo/releases/tag/v0.163.1"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/gohugoio/hugo/security/advisories/GHSA-r46f-3rpw-hxrv"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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