CVE-2026-25651

EUVD-2026-5630
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.
Open Redirect
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
tgiesclient-certificate-auth
0.2.1 ≤
𝑥
< 1.0.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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