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CVE-2026-3047 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: March 5, 2026

Keycloak - Broken Access Control

Published: March 5, 2026Updated: March 5, 2026Remote Exploitable

Overview

Keycloak contains a broken access control vulnerability caused by disabled SAML clients configured as IdP-initiated broker landing targets still completing login, letting remote attackers bypass authentication and access enabled clients.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Remote attackers can bypass authentication and gain unauthorized access to enabled clients, compromising security.

Mitigation

Update to the latest version of Keycloak containing the fix.

References

https://access.redhat.com/errata/RHSA-2026:3948
https://access.redhat.com/security/cve/CVE-2026-3047
https://bugzilla.redhat.com/show_bug.cgi?id=2441966
https://access.redhat.com/errata/RHSA-2026:3925
https://access.redhat.com/errata/RHSA-2026:3926
https://access.redhat.com/errata/RHSA-2026:3947

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-3047
Severity: High
CVSS Score: 8.8
Type: broken_access_control
Status: unconfirmed

CWE

CWE-305

CVSS Metrics

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