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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-3009 Detail

Description

A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://access.redhat.com/errata/RHSA-2026:3947 Red Hat, Inc. Vendor Advisory 
https://access.redhat.com/errata/RHSA-2026:3948 Red Hat, Inc. Vendor Advisory 
https://access.redhat.com/security/cve/CVE-2026-3009 Red Hat, Inc. Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2441867 Red Hat, Inc. Issue Tracking  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-3009
NVD Published Date:
03/05/2026
NVD Last Modified:
03/24/2026
Source:
Red Hat, Inc.