{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43897","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-04T16:11:33.085Z","datePublished":"2026-05-11T21:14:40.495Z","dateUpdated":"2026-05-12T16:40:05.641Z"},"containers":{"cna":{"title":"Link Preview JS: vunerable to IPv6 and internal loopback attacks","problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/OP-Engineering/link-preview-js/security/advisories/GHSA-4gp8-rjrq-ch6q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OP-Engineering/link-preview-js/security/advisories/GHSA-4gp8-rjrq-ch6q"},{"name":"https://github.com/OP-Engineering/link-preview-js/pull/179","tags":["x_refsource_MISC"],"url":"https://github.com/OP-Engineering/link-preview-js/pull/179"},{"name":"https://github.com/OP-Engineering/link-preview-js/commit/4396d48909fab37553c0e93e26447fe218363ede","tags":["x_refsource_MISC"],"url":"https://github.com/OP-Engineering/link-preview-js/commit/4396d48909fab37553c0e93e26447fe218363ede"},{"name":"https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1","tags":["x_refsource_MISC"],"url":"https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1"}],"affected":[{"vendor":"OP-Engineering","product":"link-preview-js","versions":[{"version":"< 4.0.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-11T21:14:40.495Z"},"descriptions":[{"lang":"en","value":"Link Preview JS extracts web links information. Prior to 4.0.1, the library did not check for IPv6 loopback attacks. There was also a DNS attack, where an address could be resolved into an internal IP. This could cause internal data leaks. This vulnerability is fixed in 4.0.1."}],"source":{"advisory":"GHSA-4gp8-rjrq-ch6q","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-12T16:39:50.874250Z","id":"CVE-2026-43897","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-05-12T16:40:05.641Z"}}]}}