CVE-2021-3754

Published: Aug 26, 2022Modified: Jun 17, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitability: 3.9 / Impact: 1.4

Source: NVD

Description

A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.

Affected (2)

Products: Redhat: Keycloak, Single Sign On

Redhat

2 products

Keycloak

Single Sign On

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Redhat Keycloak	All versions
Redhat Single Sign On	Version 7.0

Related CWEs

CWE-20

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (4)

https://access.redhat.com/security/cve/CVE-2021-3754

Source: secalert@redhat.com

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1999196

Source: secalert@redhat.com

Issue TrackingVendor Advisory

https://access.redhat.com/security/cve/CVE-2021-3754

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1999196

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingVendor Advisory

Timeline

No history available yet.