CVE-2026-3047: falha de alta gravidade em Red Hat build of Keycloak 26.2
Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.8epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Red Hat · Red Hat build of Keycloak 26.2Red Hat · Red Hat build of Keycloak 26.2.14Red Hat · Red Hat build of Keycloak 26.4Red Hat · Red Hat build of Keycloak 26.4.10CVEs relacionadas — Red Hat build of Keycloak 26.2
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Referências
https://access.redhat.com/errata/RHSA-2026:3925https://access.redhat.com/errata/RHSA-2026:3926https://access.redhat.com/errata/RHSA-2026:3947https://access.redhat.com/errata/RHSA-2026:3948https://access.redhat.com/security/cve/CVE-2026-3047https://bugzilla.redhat.com/show_bug.cgi?id=2441966https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3047.json