Keycloak does not correctly validate its client step-up authentication. A password-authed attacker could use this flaw to register a false second auth factor, alongside the existing one, to a targeted account. The second factor then permits step-up authentication.
{
"nvd_published_at": "2024-04-25T13:15:50Z",
"cwe_ids": [
"CWE-287",
"CWE-288"
],
"severity": "MODERATE",
"github_reviewed_at": "2024-04-17T17:31:50Z",
"github_reviewed": true
}