A flaw was found in Keycloak before 13.0.0 where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same "state" parameter. This flaw allows a malicious user to perform replay attacks.
{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "13.0.0"
}
],
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*"
}