NginxProxyManager nginx-proxy-manager up to 2.15.1 Validate Route certificate.js internalCertificate.validate missing authentication

Summaryinfo

A vulnerability was found in NginxProxyManager nginx-proxy-manager up to 2.15.1. It has been classified as problematic. Affected is the function internalCertificate.validate of the file backend/internal/certificate.js of the component Validate Route. This manipulation causes missing authentication. This vulnerability appears as CVE-2026-93964. The attack may be initiated remotely. In addition, an exploit is available. 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.

Detailsinfo

A vulnerability was found in NginxProxyManager nginx-proxy-manager up to 2.15.1. It has been declared as problematic. Affected by this vulnerability is the function internalCertificate.validate of the file backend/internal/certificate.js of the component Validate Route. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-93964. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• NginxProxyManager

Name

• nginx-proxy-manager

Version

• 2.0
• 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

Website

• Product: https://github.com/NginxProxyManager/nginx-proxy-manager/

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #944336: NginxProxyManager nginx-proxy-manager commit c354238 (v2.14.0) Missing Authentication (by geochen)

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