CVE-2021-38155

mediumPriorität · verfolgen · 31EPSS 0.025 · 84. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.48% (84th) EPSS

CVSS 5 · medium

Is it mine?

9 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · bewertet 2026-10-27

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.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-307USprimärCWE-307US

betroffene Produkte (9)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
openstack keystone10.0.0 → 16.0.2nvdUScpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
openstack keystone17.0.0 → 17.0.1nvdUScpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
openstack keystone18.0.0 → 18.0.1nvdUScpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
openstack keystone19.0.0 → 19.0.1nvdUScpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
PyPI keystone10.0 → 16.0.2osvUSpkg:pypi/keystone
PyPI keystone17.0 → 17.0.1osvUSpkg:pypi/keystone
PyPI keystone18.0 → 18.0.1osvUSpkg:pypi/keystone
PyPI keystone19.0 → 19.0.1osvUSpkg:pypi/keystone

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-4225-97pr-rr52OpenStack Keystone allows information disclosure during account locking2022-05-24ghsa · osvUS
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.
PYSEC-2026-830OpenStack Keystone allows information disclosure during account locking2026-07-06vendor · osvUS
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.

auch bekannt als (6)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

veröffentlicht 2021-08-06geändert 2026-06-17

verwandt (825)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2019-17240US	critical9.8	39.6% (99th)	Exploit	2019-10-06
bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using many different forged X-Forwarded-For or Client-IP HTTP headers.
CVE-2020-15906US	critical9.8	27.2% (98th)	Exploit	2020-10-22
tiki-login.php in Tiki before 21.2 sets the admin password to a blank value after 50 invalid login attempts.
CVE-2016-9361US	critical9.8	20.4% (97th)	Exploit	2017-02-13
An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions…
CVE-2003-1096US	high10.0	10.5% (96th)	Exploit	2003-12-31
The Cisco LEAP challenge/response authentication mechanism uses passwords in a way that is susceptible to dictionary attacks, which makes it easier for remote attackers to gain pri…
CVE-2023-27100US	critical9.8	9.84% (96th)	Exploit	2023-03-22
Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to byp…

+820 weitere

Referenzen (14)

Externe Belege — Patches, Meldungen, Analysen.

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