{"id":"EUVD-2026-88394","revision":"bd74742c4e4e470b9ae227b7b655e01b","records":[{"revision":"bd74742c4e4e470b9ae227b7b655e01b","observedAt":"2026-11-11T05:28:21.8+00:00","statement":{"source":"euvd","id":"EUVD-2026-88394","aliases":["CVE-2026-101910","GHSA-2vr4-cq9g-pvrc"],"title":"ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. From 10.2.0 until 10.5.1, the Address6 isPrivate classifier in src/ipv6.ts does not recognize the NAT64 local-use range 64:ff9b:1::/48. Applications…","description":"ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. From 10.2.0 until 10.5.1, the Address6 isPrivate classifier in src/ipv6.ts does not recognize the NAT64 local-use range 64:ff9b:1::/48. Applications that combine isPrivate, isLoopback, and isLinkLocal for a trust-boundary decision can treat an internal IPv4 destination encoded through that range as external. Exploitation depends on a server network using an operator-selected NAT64 prefix within the local-use range. A successful bypass can cross the intended network trust boundary. This issue is fixed in version 10.5.1.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N","score":6.9,"severity":null}],"references":["https://github.com/beaugunderson/ip-address/security/advisories/GHSA-2vr4-cq9g-pvrc","https://github.com/beaugunderson/ip-address/commit/ab3dc88bcf5374344168a2ba075ca7ac4ff257f8","https://github.com/beaugunderson/ip-address/releases/tag/v10.5.1"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88394","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 28, 2026, 5:45:27 PM","dateUpdated":"Sep 28, 2026, 6:12:34 PM"},"relatedAdvisories":[],"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-2026-88394","identifiers":["EUVD-2026-88394","CVE-2026-101910","GHSA-2vr4-cq9g-pvrc"]},"retained":false,"historicalAffected":[]}],"coverage":[]}