Moderate severityNVD Advisory· Published Feb 6, 2026· Updated Feb 9, 2026
client-certificate-auth has an Open Redirect via Host Header Injection in HTTP-to-HTTPS redirect
CVE-2026-25651
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
client-certificate-authnpm | >= 0.2.1, < 1.0.0 | 1.0.0 |
Affected products
2- Range: >= 0.2.1, < 1.0.0
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-m4w9-gch5-c2g4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-25651ghsaADVISORY
- github.com/tgies/client-certificate-auth/commit/8fc995e953db483495be46862965e50fe9e1cc52ghsaWEB
- github.com/tgies/client-certificate-auth/releases/tag/v1.0.0ghsax_refsource_MISCWEB
- github.com/tgies/client-certificate-auth/security/advisories/GHSA-m4w9-gch5-c2g4ghsax_refsource_CONFIRMWEB
News mentions
0No linked articles in our index yet.