CVE-2026-25651

MEDIUM

6.1

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.

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/6/2026

Last Modified2/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

tgies:client-certificate-auth

Weaknesses (CWE)

CWE-601

References

https://github.com/tgies/client-certificate-auth/releases/tag/v1.0.0(security-advisories@github.com)

https://github.com/tgies/client-certificate-auth/security/advisories/GHSA-m4w9-gch5-c2g4(security-advisories@github.com)

IOC Correlations

No correlations recorded

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