A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
{
"cwe_ids": [
"CWE-305"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3047.json",
"cna_assigner": "redhat"
}{
"cpe": [
"cpe:2.3:a:redhat:build_of_keycloak:26.2:*:*:*:*:*:*:*",
"cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "26.2"
},
{
"last_affected": "26.2"
},
{
"introduced": "26.4"
},
{
"last_affected": "26.4"
}
],
"source": "CPE_STRING"
}