GHSA-4vc8-pg5c-vg4x

Keycloak's improper input validation allows using email as username

Source: GitHub Advisory Database (reviewed) Low CVE-2021-3754

Packages

Ecosystem	Package	Affected	Fixed in
Maven	org.keycloak:keycloak-services	< 24.0.1	24.0.1

Details

As written in the advisory (Markdown source, shown as plain text).

Keycloak allows the use of email as a username and doesn't check that an account with this email already exists. That could lead to the unability to reset/login with email for the user. This is caused by usernames being evaluated before emails.

References

External links from the advisory. They lead to third-party sites.

https://github.com/keycloak/keycloak/security/advisories/GHSA-4vc8-pg5c-vg4x web
https://nvd.nist.gov/vuln/detail/CVE-2021-3754 advisory
https://github.com/keycloak/keycloak/commit/f9708037383aa98741e4850447de64dc4a0d4b4e web
https://access.redhat.com/security/cve/CVE-2021-3754 web
https://bugzilla.redhat.com/show_bug.cgi?id=1999196 web
https://github.com/keycloak/keycloak package