{"id":"CVE-2026-69198","revision":"c5cdff19bb274e54b3e373f80fe19e5b","records":[{"revision":"c5cdff19bb274e54b3e373f80fe19e5b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-69198","aliases":[],"title":"ip-address: a CIDR suffix on the parsed address suppresses special-use classification and can bypass SSRF and trust-boundary checks","description":"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. That mask comes verbatim from the CIDR suffix on the parsed input, so appending a suffix such as /0 suppresses classification entirely: isLoopback(), isPrivate(), isLinkLocal(), isCGNAT(), isMulticast(), isUnspecified(), isBroadcast(), isULA(), and getType() all report an internal address as unremarkable, while correctForm() and address still return the real internal target. 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, may therefore treat an internal target as external and allow the request. The underlying bit comparison is correct, and mask(n) already returns the first n bits of the full parsed address independently of subnetMask; the defect is solely that the containment guard sits in the classification path. This issue is fixed in version 10.2.2.","state":0,"publishedAt":"2026-08-03T19:59:05.731+00:00","modifiedAt":"2026-08-04T17:21:59.584+00:00","affected":[{"ecosystem":"Vendor product","name":"ip-address","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"beaugunderson\",\n                    \"product\": \"ip-address\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 10.1.1, < 10.2.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"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":"MEDIUM"}],"references":["https://github.com/beaugunderson/ip-address/security/advisories/GHSA-4xrf-jv44-h6hh","https://github.com/beaugunderson/ip-address/commit/488fe9bc7c35363b4b090494fc38c266d217740d","https://github.com/beaugunderson/ip-address/releases/tag/v10.2.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-69198","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-69198","identifiers":["CVE-2026-69198"]},"retained":false,"historicalAffected":[]}],"coverage":[]}