CVE-2026-25651 — MEDIUM (6.1)

Q: How severe is CVE-2026-25651?

CVE-2026-25651 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-25651?

Check the references section above for vendor advisories and patch information. Affected products include: Tgies Client-Certificate-Auth.

Vulnerability 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 Score

6.1

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Tgies	Client-Certificate-Auth	>= 0.2.1, < 1.0.0

Related Weaknesses (CWE)

CWE-601

References

https://github.com/tgies/client-certificate-auth/releases/tag/v1.0.0Release Notes
https://github.com/tgies/client-certificate-auth/security/advisories/GHSA-m4w9-gExploitVendor Advisory

FAQ

What is CVE-2026-25651?

CVE-2026-25651 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 vulnera...

How severe is CVE-2026-25651?

CVE-2026-25651 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-25651?

Check the references section above for vendor advisories and patch information. Affected products include: Tgies Client-Certificate-Auth.