{"cve":"CVE-2026-43897","nvd":{"published":"2026-05-11T22:22:14.207","modified":"2026-10-26T00:10:00.150","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":8.7},"cvss_v3":null,"cwes":["CWE-918"],"references":["https://github.com/OP-Engineering/link-preview-js/commit/4396d48909fab37553c0e93e26447fe218363ede","https://github.com/OP-Engineering/link-preview-js/pull/179","https://github.com/OP-Engineering/link-preview-js/releases/tag/4.0.1","https://github.com/OP-Engineering/link-preview-js/security/advisories/GHSA-4gp8-rjrq-ch6q"],"products":[],"source":"nvd","synced_at":"2026-10-26T00:31:35.753532240+00:00"},"epss":{"cve":"CVE-2026-43897","score":0.00654,"percentile":0.51048,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-4gp8-rjrq-ch6q","url":"https://osv.dev/vulnerability/GHSA-4gp8-rjrq-ch6q","summary":"link-preview-js vulnerable to IPv6 and internal loopback attacks","modified":"2026-05-13T14:35:04.660604Z","packages":[{"ecosystem":"npm","name":"link-preview-js","purl":"pkg:npm/link-preview-js","ranges":["<4.0.1"],"fixed":["4.0.1"]}]}],"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."]}