CVE-2021-3754
LOW3.7EPSS 12.3%Keycloak's improper input validation allows using email as username
Published: 6/12/2024Modified: 12/20/2024
Description
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.
Affected packages (1)
- Maven/org.keycloak:keycloak-servicesfrom 0, < 24.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-3754
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/security/cve/CVE-2021-3754
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1999196
- WEBhttps://github.com/keycloak/keycloak/commit/f9708037383aa98741e4850447de64dc4a0d4b4e
- WEBhttps://github.com/keycloak/keycloak/security/advisories/GHSA-4vc8-pg5c-vg4x