CVE-2021-38155
HIGHOpenStack Keystone <16.0.2-19.0.1 - Info Disclosure
Title source: llmDescription
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.
References (4)
Scores
CVSS v3
7.5
EPSS
0.0116
EPSS Percentile
78.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Classification
CWE
CWE-307
Status
published
Affected Products (2)
openstack/keystone
< 16.0.2
pypi/keystone
< 16.0.2PyPI
Timeline
Published
Aug 06, 2021
Tracked Since
Feb 18, 2026