CVE-2025-66508

1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.14 and below use Gin's default configuration which trusts all IP addresses as proxies (TrustedProxies = 0.0.0.0/0), allowing any client to spoof the X-Forwarded-For header. Since all IP-based access controls (AllowIPs, API whitelists, localhost-only checks) rely on ClientIP(), attackers can bypass these protections by simply sending X-Forwarded-For: 127.0.0.1 or any whitelisted IP. This renders all IP-based security controls ineffective. This issue is fixed in version 2.0.14.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/1Panel-dev/1Panel/commit/94f7d78cc9768ee244da33e09408017d1f68b5ed	Patch
https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-7cqv-qcq2-r765	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:fit2cloud:1panel:*:*:*:*:*:*:*:*

History

14 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) 1Panel es un panel de control de código abierto, basado en web, para la gestión de servidores Linux. Las versiones 2.0.14 e inferiores utilizan la configuración predeterminada de Gin que confía en todas las direcciones IP como proxies (TrustedProxies = 0.0.0.0/0), permitiendo a cualquier cliente falsificar el encabezado X-Forwarded-For. Dado que todos los controles de acceso basados en IP (AllowIPs, listas blancas de API, comprobaciones de solo localhost) dependen de ClientIP(), los atacantes pueden eludir estas protecciones simplemente enviando X-Forwarded-For: 127.0.0.1 o cualquier IP en la lista blanca. Esto hace que todos los controles de seguridad basados en IP sean ineficaces. Este problema está solucionado en la versión 2.0.14.

Information

Published : 2025-12-09 16:18

Updated : 2026-10-14 21:10

NVD link : CVE-2025-66508

Mitre link : CVE-2025-66508

CVE.ORG link : CVE-2025-66508

JSON object : View

Products Affected

fit2cloud

1panel

CWE

CWE-290

Authentication Bypass by Spoofing

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