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OpenAdvisories
Medium · 6.1 CVE-2026-25651 EUVD-2026-5630GHSA-m4w9-gch5-c2g4

client-certificate-auth has an Open Redirect via Host Header Injection in HTTP-to-HTTPS redirect

Published Feb 6, 2026 · Updated Feb 9, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
tgies client-certificate-auth >= 0.2.1, < 1.0.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm client-certificate-auth >= 0.2.1, < 1.0.0 1.0.0 GHSA-m4w9-gch5-c2g4

References