Vulnerability Details CVE-2026-25651
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.4%
CVSS Severity
CVSS v3 Score 6.1
References
Products affected by CVE-2026-25651
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cpe:2.3:a:tgies:client-certificate-auth:*