CVE-2026-102335
Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 28, 2026
- Updated
- Sep 30, 2026
- Reserved
- Sep 28, 2026
Description
Nginx Proxy Manager through 2.16.0 fails to restrict the advanced_config field to administrators, allowing non-admin users with manage permissions to inject arbitrary nginx directives. Attackers can inject malicious nginx configuration such as alias directives to serve arbitrary files or control routing for their assigned hosts.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
nginx-proxy-managerNginxProxyManager |
|
References
- https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5749issue-tracking
- https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5908patchissue-tracking
- https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/user.js#L52-L62technical-description
- https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/templates/proxy_host.conf#L28technical-description
- https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/README.md#L36technical-description
- https://github.com/NginxProxyManager/nginx-proxy-managerproduct
- VulnCheck Advisory: Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_configthird-party-advisory
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