CVE-2018-19367

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-11-20 · updated 2026-06-17

Description

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.

Affected products

portainer: through 1.19.2

References

https://github.com/lichti/shodan-portainer/
https://github.com/portainer/portainer/issues/2475
https://github.com/lichti/shodan-portainer/
https://github.com/portainer/portainer/issues/2475

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