TI-2026-63223 Aliases CVE-2026-93964 GHSA-75h8-hx74-6qmf

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

HIGH 70CWE-287Published 2026-09-20 · Updated 2026-09-22

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00454 39th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
NginxProxyManager	nginx-proxy-manager	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	—	No fix listed	CNA

nginx-proxy-manager VendorNginxProxyManager Affected 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 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nginxproxymanager:nginx-proxy-manager::::::::	—	—	NginxProxyManager

cpe:2.3:a:nginxproxymanager:nginx-proxy-manager:*:*:*:*:*:*:*:* Versions — — ·NginxProxyManager

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-93964
2026-10-03 Alias added: GHSA-75h8-hx74-6qmf

References

Exploit 1

https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5594

Other 1

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

TI-2022-11133 jc21.com Nginx Proxy Manager before 2.9.17 allows XSS during item deletion. CVSS 3.1MEDIUM 6.8
TI-2026-65356 Nginx Proxy Manager through 2.16.0 Missing Brute-Force Protection CVSS 4.0CRITICAL 9.1
TI-2026-29266 Nginx Proxy Manager Authenticated RCE via setupCertbotPlugins() CVSS 4.0HIGH 7.7
TI-2026-65357 Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences