CVE-2026-101912

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the isInSubnet and isHostInSubnet methods in src/common.ts compare masked binary strings without validating that both operands use the same IP family. A cross-family containment check whos...

CVE-2026-101912 ip-address: isInSubnet() and isHostInSubnet() compare addresses of different families as if they shared an address space, allowing an allowlist check to admit an address outside its range

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the isInSubnet and isHostInSubnet methods in src/common.ts compare masked binary strings without validating that both operands use the same IP family. A cross-family containment check whos...

CVE-2026-101912

The ip-address JavaScript library for parsing and manipulating IPv4 and IPv6 addresses is vulnerable in versions prior to 10.7.1 . The isInSubnet and isHostInSubnet methods in src/common.ts fail to validate that both operands belong to the same IP family when comparing masked binary strings. This...

CVE-2026-101912 ip-address: isInSubnet() and isHostInSubnet() compare addresses of different families as if they shared an address space, allowing an allowlist check to admit an address outside its range

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the isInSubnet and isHostInSubnet methods in src/common.ts compare masked binary strings without validating that both operands use the same IP family. A cross-family containment check whos...

EUVD-2026-88396

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the isInSubnet and isHostInSubnet methods in src/common.ts compare masked binary strings without validating that both operands use the same IP family. A cross-family containment check whos...

Server-side Request Forgery (SSRF)

Overview org.webjars.npm:ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the isInSubnet function. An attacker can bypass network trust-boundary checks by appending a...

CVE-2026-69198: Improper Input Validation

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. From 10.1.1 until 10.2.2, every special-use classification method is built on isInSubnet, which short-circuits to false whenever the address's own subnet mask is shorter than the reference range's mask. Th...