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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-19367

Portainer through 1.19.2 provides an API endpoint (/api/users/admin/check) to verify that the admin user is already created. This API endpoint will return 404 if admin was not created and 204 if it was already created. Attackers can set an admin password in the 404 case.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-19367
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:29 UTC · Revision 1

Source evidence

CVE-2018-19367

core-osv · Original source

Published 20 Nov 2018, 09:29 UTC

Portainer through 1.19.2 provides an API endpoint (/api/users/admin/check) to verify that the admin user is already created. This API endpoint will return 404 if admin was not created and 204 if it was already created. Attackers can set an admin password in the 404 case.

osv:CVE-2018-19367
Complete source record
{
  "id": "e01e2054be78a67b9ec657afc0d4d260e700c385b46ac8181ecb425817dabbad",
  "url": "https://osv.dev/vulnerability/CVE-2018-19367",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19367",
    "summary": "Portainer through 1.19.2 provides an API endpoint (/api/users/admin/check) to verify that the admin user is already created. This API endpoint will return 404 if admin was not created and 204 if it was already created. Attackers can set an admin password in the 404 case.",
    "evidence": "osv:CVE-2018-19367",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-19367",
      "aliases": [
        "CVE-2018-19367"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/portainer/portainer",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "02362defde117169efafb3a1d3234fb3b772582a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:portainer:portainer:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.19.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.19.2",
            "1.19.1",
            "1.19.0",
            "1.18.1",
            "1.18.0",
            "1.17.1",
            "1.17.0",
            "1.16.5",
            "1.16.4",
            "1.16.3",
            "1.16.2",
            "1.16.1",
            "1.16.0",
            "1.15.5",
            "1.15.4",
            "1.15.3",
            "1.15.2",
            "1.15.1",
            "1.15.0",
            "1.14.3",
            "1.14.2",
            "1.14.1",
            "1.14.0",
            "1.13.6",
            "1.13.5",
            "1.13.4",
            "1.13.3",
            "1.13.2",
            "1.13.1",
            "1.13.0",
            "1.12.4",
            "1.12.3",
            "1.12.2",
            "1.12.1",
            "1.12.0",
            "1.11.4",
            "1.11.2",
            "1.11.1",
            "1.11.0",
            "1.10.2",
            "1.10.1",
            "1.10.0",
            "1.9.3",
            "1.9.2",
            "1.9.1",
            "1.9.0",
            "1.8.1",
            "1.8.0",
            "1.7.0",
            "1.6.0",
            "1.5.0",
            "1.3.0",
            "1.2.0",
            "1.1.0",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1",
            "1.0.0",
            "v0.6.0",
            "v0.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19367.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:23.213823758Z",
      "provider": "osv",
      "references": [
        "https://github.com/portainer/portainer/issues/2475",
        "https://github.com/lichti/shodan-portainer/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-19367",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381653,
  "published_at": "2018-11-20T09:29:05.053+00:00"
}