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Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-102335
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 16:49 UTC · Revision 1

Source evidence

Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config

core-osv · Original source

Published 28 Sept 2026, 22:21 UTC

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.

osv:CVE-2026-102335
Complete source record
{
  "id": "6624293ec0fc5693497a5d53f6220db6cf61c7d033eb90dadb0e1db8b76adaf0",
  "url": "https://osv.dev/vulnerability/CVE-2026-102335",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config",
    "summary": "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.",
    "evidence": "osv:CVE-2026-102335",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-102335",
      "aliases": [
        "CVE-2026-102335"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nginxproxymanager/nginx-proxy-manager",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "a29eae9dc271ceabda51a6197bf1790644c99202"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.16.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.16.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.16.0",
            "v2.15.1",
            "v2.15.0",
            "v2.14.0",
            "v2.13.7",
            "v2.13.6",
            "v2.13.5",
            "v2.13.4",
            "v2.13.3",
            "v2.13.2",
            "v2.13.1",
            "v2.13.0",
            "v2.12.6",
            "v2.12.5",
            "v2.12.4",
            "v2.12.3",
            "v2.12.2",
            "v2.12.1",
            "v2.12.0",
            "v2.11.3",
            "v2.11.2",
            "v2.11.1",
            "v2.11.0",
            "v2.10.4",
            "v2.10.3",
            "v2.10.2",
            "v2.10.1",
            "v2.10.0",
            "v2.9.22",
            "v2.9.21",
            "v2.9.20",
            "v2.9.19",
            "v2.9.18",
            "v2.9.17",
            "v2.9.16",
            "v2.9.15",
            "v2.9.14",
            "v2.9.13",
            "v2.9.12",
            "v2.9.11",
            "v2.9.10",
            "v2.9.9",
            "v2.9.8",
            "v2.9.3",
            "v2.9.0",
            "v2.8.1",
            "v2.8.0",
            "v2.7.3",
            "v2.7.2",
            "v2.7.1",
            "v2.7.0",
            "v2.6.2",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.1",
            "v2.3.0",
            "v2.2.4",
            "v2.2.3",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "2.0.14",
            "2.0.13",
            "2.0.12",
            "2.0.11",
            "2.0.10",
            "2.0.9",
            "2.0.8",
            "2.0.7",
            "2.0.6",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.2",
            "1.1.2",
            "1.1.1",
            "1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102335.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.727530009Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102335.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-102335",
        "https://www.vulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-improper-authorization-via-advanced-config",
        "https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5749",
        "https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5908",
        "https://github.com/NginxProxyManager/nginx-proxy-manager",
        "https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/README.md#L36",
        "https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/user.js#L52-L62",
        "https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/templates/proxy_host.conf#L28"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102335.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-102335",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497598,
  "published_at": "2026-09-28T22:21:41.746+00:00"
}