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CVE-2026-102335

Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config

HIGH
7.1
CVSS Score
Published: September 28, 2026 at 10:21 PM UTC
Updated: September 30, 2026 at 03:22 PM UTC
1 product affected across 1 vendorNginxProxyManager

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (7)

Issue Tracking
Source: cverecord
https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5749
PatchIssue Tracking
Source: cverecord
https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5908
Technical Description
Source: cverecord
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/user.js#L52-L62
Technical Description
Source: cverecord
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/templates/proxy_host.conf#L28
Technical Description
Source: cverecord
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/README.md#L36
Product
Source: cverecord
https://github.com/NginxProxyManager/nginx-proxy-manager
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-improper-authorization-via-advanced-config

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-863

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