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CVE-2025-66508

1Panel IP Access Control Bypass via Untrusted X-Forwarded-For Headers

Published: Dec 9, 2025Updated: Dec 10, 2025 Sources: CVE List NVD GHSACWE-290
6.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 90.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-290

Affected Products

1panelfit2cloud
SaaSSaaS Service
Cloud & SaaS / saas-application
1Panel1Panel-dev
On-prem
Cloud & SaaS / cloud-platform
github.com/1Panel-dev/1PanelGoOSS Libraries
github.com/1Panel-dev/1Panel/agentGoOSS Libraries
fit2cloudcommercialCloud & SaaSaka jumpserver, 1panel, cloudexplorer lite
1panel-devoss-projectCNCloud & SaaSaka 1panel
gopackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/1Panel-dev/1Panel/commit/94f7d78cc9768ee244da33e09408017d1f68b5ed
github.com
https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-7cqv-qcq2-r765
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-66508
nvd.nist.gov
and 1 more references View all →

Timeline

Published
Dec 9, 2025
Last Updated
Dec 10, 2025

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