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.
{ "github_reviewed_at": "2024-04-17T17:31:50Z", "severity": "MODERATE", "nvd_published_at": "2024-04-25T13:15:50Z", "github_reviewed": true, "cwe_ids": [ "CWE-287", "CWE-288" ] }