CVE-2018-20170: Openstack Keystone

Medium severity, CVSS 5.3. EPSS: 1.1% chance of exploitation in the next 30 days.

OpenStack Keystone through 14.0.1 has a user enumeration vulnerability because invalid usernames have much faster responses than valid ones for a POST /v3/auth/tokens request. NOTE: the vendor's position is that this is a hardening opportunity, and not necessarily an issue that should have an OpenStack Security Advisory

Affected products

• Openstack Keystone: up to and including 14.0.1

Published 2018-12-17. Last modified 2026-06-17.