CVE-2026-93964

Medium

Description

A vulnerability was detected in NginxProxyManager nginx-proxy-manager up to 2.15.1. This impacts the function internalCertificate.validate of the file backend/internal/certificate.js of the component Validate Route. The manipulation results in missing authentication. The attack can be launched remotely. The exploit is now public and may be used. Endpoint only processes and echoes back the certificate the caller submits (no stored data leaked); the real risk is unauthenticated openssl processing of attacker input. The project was informed of the problem early through an issue report but has not responded yet.

SeverityMedium
CVSS5.3
Exploit probability—
ProductNginxproxymanager Nginx-proxy-manager
PublishedSep 20, 2026
First seenSep 20, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
nginxproxymanager nginx-proxy-manager2.0, 2.1, 2.1.0, 2.1.1, 2.1.2, 2.2, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.3, 2.3.0, 2.3.1, 2.4, 2.4.0, 2.5, 2.5.0, 2.6, 2.6.0, 2.6.1, 2.6.2, 2.7, 2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.8, 2.8.0, 2.8.1, 2.9, 2.9.0, 2.9.1, 2.9.2, 2.9.3, 2.9.4, 2.9.5, 2.9.6, 2.9.7, 2.9.8, 2.9.9, 2.9.10, 2.9.11, 2.9.12, 2.9.13, 2.9.14, 2.9.15, 2.9.16, 2.9.17, 2.9.18, 2.9.19, 2.9.20, 2.9.21, 2.9.22, 2.10, 2.10.0, 2.10.1, 2.10.2, 2.10.3, 2.10.4, 2.11, 2.12, 2.13, 2.14.0, 2.15.0, 2.15.1—

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CVE-2026-93964 · Nginxproxymanager Nginx-proxy-manager · Dark Radar