Vulnerability in Openstack Keystone

CVE-2021-38155

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 f…

EPSS: 0.025 (82.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-38155?
CVE-2021-38155 is a high-severity vulnerability in Openstack Keystone, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.5/10. Published 2021-08-06.
How severe is CVE-2021-38155?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-38155 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.