{"id":"DEBIAN-CVE-2026-101910","details":"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.","modified":"2026-09-29T05:00:08.497921769Z","published":"2026-09-28T18:17:20.710Z","upstream":["CVE-2026-101910"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-101910"}],"affected":[{"package":{"name":"node-ip-address","ecosystem":"Debian:12","purl":"pkg:deb/debian/node-ip-address?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["10.2.0-1","10.2.0-2","10.3.1-1","10.4.0-1","10.7.2-1","8.1.0-2","8.1.0-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101910.json"}},{"package":{"name":"node-ip-address","ecosystem":"Debian:13","purl":"pkg:deb/debian/node-ip-address?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["10.2.0-1","10.2.0-2","10.3.1-1","10.4.0-1","10.7.2-1","8.1.0-2","8.1.0-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101910.json"}},{"package":{"name":"node-ip-address","ecosystem":"Debian:14","purl":"pkg:deb/debian/node-ip-address?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.7.2-1"}]}],"versions":["10.2.0-1","10.2.0-2","10.3.1-1","10.4.0-1","8.1.0-2","8.1.0-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101910.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/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"}]}