CVE-2026-3047

HIGH EPSS 36.5%

Published Mar 5, 20263mo ago · Modified Jun 17, 20261w ago

8.8 CVSS 3.1

High

Published Mar 5, 2026 3mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

8.8

Exploitability

2.8

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

36.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-305

Affected Products 6

Vendor	Product	Version	Range
redhat	build_of_keycloak	*	any
redhat	build_of_keycloak	26.2	any
redhat	build_of_keycloak	26.2.14	any
redhat	build_of_keycloak	26.4	any
redhat	build_of_keycloak	26.4.10	any
redhat	keycloak	*	any

References 6

access.redhat.com https://access.redhat.com/errata/RHSA-2026:3925

Vendor Advisory
access.redhat.com https://access.redhat.com/errata/RHSA-2026:3926

Vendor Advisory
access.redhat.com https://access.redhat.com/errata/RHSA-2026:3947

Vendor Advisory
access.redhat.com https://access.redhat.com/errata/RHSA-2026:3948

Vendor Advisory
access.redhat.com https://access.redhat.com/security/cve/CVE-2026-3047

Vendor Advisory
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2441966

Issue TrackingVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.