CVE-2026-3047 (GCVE-0-2026-3047)

Vulnerability from cvelistv5 – Published: 2026-03-05 18:28 – Updated: 2026-03-06 18:13
VLAI?
Title
Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
Summary
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.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
https://access.redhat.com/errata/RHSA-2026:3925 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3926 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3947 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3948 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-3047 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2441966 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat build of Keycloak 26.2 Unaffected: 26.2.14-1 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.2::el9
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    Red Hat Red Hat build of Keycloak 26.2 Unaffected: 26.2-16 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.2::el9
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    Red Hat Red Hat build of Keycloak 26.2 Unaffected: 26.2-16 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.2::el9
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    Red Hat Red Hat build of Keycloak 26.2.14     cpe:/a:redhat:build_keycloak:26.2::el9
 Create a notification for this product.
    Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.10-1 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
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    Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-12 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
 Create a notification for this product.
    Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-12 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
 Create a notification for this product.
    Red Hat Red Hat build of Keycloak 26.4.10     cpe:/a:redhat:build_keycloak:26.4::el9
 Create a notification for this product.
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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