{"cve":"CVE-2026-69198","nvd":{"published":"2026-08-03T20:17:30.107","modified":"2026-10-23T21:10:00.157","status":"Awaiting Analysis","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.","cvss_v4":{"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},"cvss_v3":null,"cwes":["CWE-20","CWE-918"],"references":["https://github.com/beaugunderson/ip-address/commit/488fe9bc7c35363b4b090494fc38c266d217740d","https://github.com/beaugunderson/ip-address/releases/tag/v10.2.2","https://github.com/beaugunderson/ip-address/security/advisories/GHSA-4xrf-jv44-h6hh","https://github.com/beaugunderson/ip-address/security/advisories/GHSA-4xrf-jv44-h6hh"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-69198","score":0.0048,"percentile":0.41124,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-4xrf-jv44-h6hh","url":"https://osv.dev/vulnerability/GHSA-4xrf-jv44-h6hh","summary":"ip-address: a CIDR suffix on the parsed address suppresses special-use classification and can bypass SSRF and trust-boundary checks","modified":"2026-09-10T03:50:53.339579998Z","packages":[{"ecosystem":"npm","name":"ip-address","purl":"pkg:npm/ip-address","ranges":[">=10.1.1 <10.2.2"],"fixed":["10.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}