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CVE-2026-3047 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:3925 redhat-SADPVendor Advisory
https://access.redhat.com/errata/RHSA-2026:3926 redhat-SADPVendor Advisory
https://access.redhat.com/errata/RHSA-2026:3947 redhat-SADPVendor Advisory
https://access.redhat.com/errata/RHSA-2026:3948 redhat-SADPVendor Advisory
https://access.redhat.com/security/cve/CVE-2026-3047 redhat-SADPVendor Advisory

see all 13 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-305Authentication Bypass by Primary Weaknessredhat-SADP
CWE-305Authentication Bypass by Primary Weakness[email protected]

Affected Products

ProductVersions
redhat build of keycloak
26.2
26.2.14
26.4
26.4.10

CPE

  • cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.2:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.2.14:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.4.10:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat keycloak
All versions

CPE

  • cpe:2.3:a:redhat:keycloak:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3047
NVD Published Date:
Mar 5, 2026
NVD Last Modified:
Jul 15, 2026
Source:
[email protected]
CVE-2026-3047 Details - Not Deferred