{"cve":"CVE-2025-66415","nvd":{"published":"2025-12-01T23:15:54.053","modified":"2026-10-18T18:10:00.100","status":"Analyzed","description":"fastify-reply-from is a Fastify plugin to forward the current HTTP request to another server. Prior to 12.5.0, by crafting a malicious URL, an attacker could access routes that are not allowed, even though the reply.from is defined for specific routes in @fastify/reply-from. This vulnerability is fixed in 12.5.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-441"],"references":["https://github.com/fastify/fastify-reply-from/commit/4d9795cd5b57a36756d37b7f036eae369f69fa66","https://github.com/fastify/fastify-reply-from/security/advisories/GHSA-2q7r-29rg-6m5h"],"products":["fastify:reply-from"],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-66415","score":0.00179,"percentile":0.0737,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-2q7r-29rg-6m5h","url":"https://osv.dev/vulnerability/GHSA-2q7r-29rg-6m5h","summary":"fastify-reply-from affected by bypass of reply forwarding","modified":"2025-12-02T01:30:13.011305Z","packages":[{"ecosystem":"npm","name":"@fastify/reply-from","purl":"pkg:npm/%40fastify/reply-from","ranges":["<12.5.0"],"fixed":["12.5.0"]}]}],"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."]}