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.
Remediation
References
https://access.redhat.com/security/cve/CVE-2021-3754
https://bugzilla.redhat.com/show_bug.cgi?id=1999196
Related Vulnerabilities
CVE-2019-12421 Vulnerability in maven package org.apache.nifi:nifi-administration
CVE-2019-17563 Vulnerability in maven package org.apache.tomcat.embed:tomcat-embed-core
CVE-2020-1942 Vulnerability in maven package org.apache.nifi:nifi-security-utils
CVE-2012-0022 Vulnerability in maven package tomcat:catalina