{"id":"CVE-2026-101913","summary":"ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts","details":"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.","aliases":["GHSA-rpw4-54j3-4h4q"],"modified":"2026-09-30T03:47:03.156244060Z","published":"2026-09-28T17:49:02.657Z","database_specific":{"cwe_ids":["CWE-697","CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101913.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/beaugunderson/ip-address/releases/tag/v10.5.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101913.json"},{"type":"ADVISORY","url":"https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rpw4-54j3-4h4q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101913"},{"type":"FIX","url":"https://github.com/beaugunderson/ip-address/commit/d03e960c7cc3179ef25c8a44b4f94dd499625546"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/beaugunderson/ip-address","events":[{"introduced":"0"},{"fixed":"d03e960c7cc3179ef25c8a44b4f94dd499625546"},{"fixed":"38b02d73cfc0724f9ad61c65b6328e116eac03ec"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"10.5.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v10.5.0","v10.4.0","v10.3.1","v10.3.0","v10.2.2","v10.2.1","v10.2.0","v10.1.1","v10.1.0","v10.0.1","v10.0.0","v9.1.0-0","v9.0.5","v9.0.3","v9.0.2","v9.0.1","v9.0.0","v8.1.0","v8.0.0","v7.1.0","v7.0.1","v7.0.0","v6.4.0","v6.3.0","v6.2.0","v6.1.0","v6.0.0","v5.9.4","v5.9.3","v5.9.2","v5.9.1","v5.9.0","v5.8.9","v5.8.8","v5.8.7","v5.8.6","v5.8.5","v5.8.4","v5.8.3","v5.8.2","v5.8.1","v5.8.0","v5.7.0","v5.6.0","v5.5.0","v5.4.1","v5.4.0","v5.3.0","v5.2.0","v3.1.0","v2.0.2","v2.0.1","2.0.0","1.1.0","1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101913.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:L/SI:N/SA:N"}]}