cvedb.io
CVE-2021-38155
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-08-06T21:15:06.687 · Last modified 2026-06-17T04:01:35.487

Summary

OpenStack Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.

Affected products

openstack — keystone

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.