A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.
{
"cpes": [
"cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*",
"cpe:2.3:a:keycloak:keycloak:*:*:*:*:*:*:*:*"
],
"severity": "High"
}