Critical
Security advisory
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
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"
}