{"cve":"CVE-2026-25651","nvd":{"published":"2026-02-06T19:16:09.897","modified":"2026-06-17T10:25:01.167","status":"Analyzed","description":"client-certificate-auth is middleware for Node.js implementing client SSL certificate authentication/authorization. Versions 0.2.1 and 0.3.0 of client-certificate-auth contain an open redirect vulnerability. The middleware unconditionally redirects HTTP requests to HTTPS using the unvalidated Host header, allowing an attacker to redirect users to arbitrary domains. This vulnerability is fixed in 1.0.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-601"],"references":["https://github.com/tgies/client-certificate-auth/releases/tag/v1.0.0","https://github.com/tgies/client-certificate-auth/security/advisories/GHSA-m4w9-gch5-c2g4"],"products":["tgies:client-certificate-auth"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-25651","score":0.00186,"percentile":0.08216,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-m4w9-gch5-c2g4","url":"https://osv.dev/vulnerability/GHSA-m4w9-gch5-c2g4","summary":"client-certificate-auth Vulnerable to Open Redirect via Host Header Injection in HTTP-to-HTTPS redirect","modified":"2026-02-06T22:22:03.562389Z","packages":[{"ecosystem":"npm","name":"client-certificate-auth","purl":"pkg:npm/client-certificate-auth","ranges":[">=0.2.1 <1.0.0"],"fixed":["1.0.0"]}]}],"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."]}