{"id":"CVE-2026-69192","sourceIdentifier":"security-advisories@github.com","published":"2026-08-03T20:17:29.960","lastModified":"2026-10-23T21:10:00.157","vulnStatus":"Awaiting Analysis","cveTags":[],"descriptions":[{"lang":"en","value":"ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.3.1, Address4 accepts an octet written with a leading zero and decodes it as decimal, while the WHATWG URL host parser, inet_aton, and getaddrinfo all decode a leading zero as octal. The library and the network stack therefore disagree about which host a string names. new Address4('012.0.0.1') reports correctForm() of 12.0.0.1 and isPrivate() of false, but fetch('http://012.0.0.1/') connects to 10.0.0.1. An application that builds a network trust-boundary decision on these checks, for example a filter intended to block Server-Side Request Forgery, or SSRF, will classify an internal target as external and allow the request. The defect is in the parse gate rather than in any one classifier, so every consumer of Address4 inherits it: isPrivate(), isLoopback(), isLinkLocal(), isCGNAT(), isInSubnet(), isHostInSubnet(), and correctForm() are all computed from the mis-decoded octets. This issue is fixed in version 10.3.1."},{"lang":"es","value":"ip-address es una biblioteca para analizar y manipular direcciones IPv4 e IPv6 en JavaScript. Antes de la versión 10.3.1, Address4 acepta un octeto escrito con un cero inicial y lo decodifica como decimal, mientras que el analizador de host de URL de WHATWG, inet_aton y getaddrinfo decodifican un cero inicial como octal. La biblioteca y la pila de red, por lo tanto, no están de acuerdo sobre qué host nombra una cadena. new Address4(’012.0.0.1’) informa un correctForm() de 12.0.0.1 y un isPrivate() de false, pero fetch(’http://012.0.0.1/’) se conecta a 10.0.0.1. Una aplicación que construye una decisión de límite de confianza de red basándose en estas comprobaciones, por ejemplo, un filtro destinado a bloquear la falsificación de petición del lado del servidor, o SSRF, clasificará un objetivo interno como externo y permitirá la petición. El defecto está en la puerta de análisis en lugar de en un clasificador específico, por lo que cada consumidor de Address4 lo hereda: isPrivate(), isLoopback(), isLinkLocal(), isCGNAT(), isInSubnet(), isHostInSubnet() y correctForm() se calculan todos a partir de los octetos mal decodificados. Este problema está solucionado en la versión 10.3.1."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"beaugunderson","product":"ip-address","versions":[{"version":"< 10.3.1","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-04T13:59:11.084723Z","id":"CVE-2026-69192","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-918"}]}],"references":[{"url":"https://github.com/beaugunderson/ip-address/commit/56368cb3d66c73ba0ee9b6b834fd31b22c2fd71e","source":"security-advisories@github.com"},{"url":"https://github.com/beaugunderson/ip-address/releases/tag/v10.3.1","source":"security-advisories@github.com"},{"url":"https://github.com/beaugunderson/ip-address/security/advisories/GHSA-mwp4-54f8-5fhr","source":"security-advisories@github.com"},{"url":"https://github.com/beaugunderson/ip-address/security/advisories/GHSA-mwp4-54f8-5fhr","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}