{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-101913", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-28T15:55:37.907Z", "datePublished": "2026-09-28T17:49:02.657Z", "dateUpdated": "2026-09-28T18:38:42.684Z"}, "containers": {"cna": {"title": "ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts", "problemTypes": [{"descriptions": [{"cweId": "CWE-697", "lang": "en", "description": "CWE-697: Incorrect Comparison", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rpw4-54j3-4h4q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rpw4-54j3-4h4q"}, {"name": "https://github.com/beaugunderson/ip-address/commit/d03e960c7cc3179ef25c8a44b4f94dd499625546", "tags": ["x_refsource_MISC"], "url": "https://github.com/beaugunderson/ip-address/commit/d03e960c7cc3179ef25c8a44b4f94dd499625546"}, {"name": "https://github.com/beaugunderson/ip-address/releases/tag/v10.5.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/beaugunderson/ip-address/releases/tag/v10.5.1"}], "affected": [{"vendor": "beaugunderson", "product": "ip-address", "versions": [{"version": "< 10.5.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-28T17:49:19.138Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-rpw4-54j3-4h4q", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rpw4-54j3-4h4q", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-28T18:37:28.332844Z", "id": "CVE-2026-101913", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-28T18:38:42.684Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,10.5.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ip-address", "source": "cna", "vendor": "beaugunderson"}, "product": "ip-address", "vendor": "beaugunderson"}], "created": "2026-09-28T19:30:02.602554+00:00", "updated": "2026-09-28T19:41:53.559639+00:00", "vendors": ["beaugunderson", "beaugunderson$PRODUCT$ip-address"]}