CVE-2021-3754
Keycloak's improper input validation allows using email as username
3.7
LOW
CVSS 3.1
EPSS 12.3%
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.
How to fix CVE-2021-3754
To remediate CVE-2021-3754, upgrade the affected package to a fixed version below.
- —upgrade to 24.0.1 or later
Is CVE-2021-3754 being exploited?
Moderate — EPSS is 12.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 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 |