{"cve":"CVE-2026-101913","nvd":{"published":"2026-09-28T18:17:21.237","modified":"2026-09-30T19:57:08.043","status":"Deferred","description":"ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.5.1, the Address6 isLinkLocal method in src/ipv6.ts recognizes only fe80::/64 instead of the complete fe80::/10 IPv6 link-local range. An attacker-controlled address elsewhere in fe80::/10 can therefore pass a trust-boundary check that relies on isLinkLocal. The same address is identified as link-local by getType and getScope, exposing the inconsistent classification. A successful bypass can reach an on-link host outside the intended trust boundary. This issue is fixed in version 10.5.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N","score":6.3},"cvss_v3":null,"cwes":["CWE-697","CWE-918"],"references":["https://github.com/beaugunderson/ip-address/commit/d03e960c7cc3179ef25c8a44b4f94dd499625546","https://github.com/beaugunderson/ip-address/releases/tag/v10.5.1","https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rpw4-54j3-4h4q","https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rpw4-54j3-4h4q"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:48.555445741+00:00"},"epss":{"cve":"CVE-2026-101913","score":0.00386,"percentile":0.3238,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-rpw4-54j3-4h4q","url":"https://osv.dev/vulnerability/GHSA-rpw4-54j3-4h4q","summary":"ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts","modified":"2026-09-28T21:00:05.359993143Z","packages":[{"ecosystem":"npm","name":"ip-address","purl":"pkg:npm/ip-address","ranges":["<10.5.1"],"fixed":["10.5.1"]}]}],"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."]}