Every CVE Search/ Get API key

CVE-2021-3632

Keycloak allows anyone to register new security device or key for any user by using WebAuthn password-less login flow

7.5 HighFix available

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.16%Up 0.2 points since Aug 27, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Record
CVE-2021-3632
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
CVE List No score

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Record
CVE-2021-3632
Weakness
CWE-287
Updated
2026-11-02
EUVDEUVD-2022-6610 No score

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Record
EUVD-2022-6610
Updated
2026-11-03
GitHub AdvisoriesGHSA-qpq9-jpv4-6gwr 7.5

Keycloak allows anyone to register new security device or key for any user by using WebAuthn password-less login flow

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Record
GHSA-qpq9-jpv4-6gwr
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
OSV 7.5

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Record
CVE-2021-3632
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-qpq9-jpv4-6gwr 7.5

Keycloak allows anyone to register new security device or key for any user by using WebAuthn password-less login flow

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Record
GHSA-qpq9-jpv4-6gwr
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
OSVRHSA-2021:3527 7.5

Red Hat Security Advisory: Red Hat Single Sign-On 7.4.9 security update on RHEL 6

Record
RHSA-2021:3527
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRHSA-2021:3528 7.5

Red Hat Security Advisory: Red Hat Single Sign-On 7.4.9 security update on RHEL 7

Record
RHSA-2021:3528
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRHSA-2021:3529 7.5

Red Hat Security Advisory: Red Hat Single Sign-On 7.4.9 security update on RHEL 8

Record
RHSA-2021:3529
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.keycloak:keycloak-core
Maven
 before 15.1.0
15.1.0
org.keycloak:keycloak-core
Maven
 before 15.1.0, plus listed versions
1.0-alpha-11.0-alpha-1-120620131.0-alpha-21.0-alpha-31.0-alpha-4
Show 45 moreShow less
1.0-beta-11.0-beta-1-201505211.0-beta-1-201505231.0-beta-21.0-beta-31.0-beta-41.0-final1.0-rc-11.0-rc-21.0.1.Final1.0.2.Final1.0.3.Final1.0.4.Final1.0.5.Final1.1.0.Beta11.1.0.Beta21.1.0.Final1.1.1.Final1.2.0.Beta11.2.0.CR11.2.0.Final1.3.0.Final1.3.1.Final1.4.0.Final1.5.0-Final1.5.0.Final1.5.1.Final1.6.0.Final1.6.1.Final1.7.0.CR11.7.0.Final1.8.0.Alpha11.8.0.CR11.8.0.CR21.8.0.CR31.8.0.Final1.8.1.Final1.9.0.CR11.9.0.Final1.9.1.Final1.9.2.Final1.9.3.Final1.9.4.Final1.9.5.Final1.9.7.Final
15.1.0
rh-sso7-keycloak
Red Hat:red_hat_single_sign_on:7::el6
From an advisory covering 5 CVEs
 before 0:9.0.15-1.redhat_00002.1.el6sso
0:9.0.15-1.redhat_00002.1.el6sso
rh-sso7-keycloak-server
Red Hat:red_hat_single_sign_on:7::el6
From an advisory covering 5 CVEs
 before 0:9.0.15-1.redhat_00002.1.el6sso
0:9.0.15-1.redhat_00002.1.el6sso
rh-sso7-keycloak
Red Hat:red_hat_single_sign_on:7::el7
From an advisory covering 5 CVEs
 before 0:9.0.15-1.redhat_00002.1.el7sso
0:9.0.15-1.redhat_00002.1.el7sso
rh-sso7-keycloak-server
Red Hat:red_hat_single_sign_on:7::el7
From an advisory covering 5 CVEs
 before 0:9.0.15-1.redhat_00002.1.el7sso
0:9.0.15-1.redhat_00002.1.el7sso
rh-sso7-keycloak
Red Hat:red_hat_single_sign_on:7::el8
From an advisory covering 5 CVEs
 before 0:9.0.15-1.redhat_00002.1.el8sso
0:9.0.15-1.redhat_00002.1.el8sso
rh-sso7-keycloak-server
Red Hat:red_hat_single_sign_on:7::el8
From an advisory covering 5 CVEs
 before 0:9.0.15-1.redhat_00002.1.el8sso
0:9.0.15-1.redhat_00002.1.el8sso

History

History
RecordedChangedSources
affected, facts
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-3632 is a high vulnerability (CVSS 7.5) in Keycloak, published August 26, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.16%, the 67th percentile. Fixed in org.keycloak:keycloak-core 15.1.0.

References

Show 28 moreShow less
This page doesn't list everything

Left out here: 78 versions. The JSON record has them.

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open