AUGUST 15, 2026
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Case File

CVE-2026-16442

HIGH · CVSS 7.4 EPSS 0.20%

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

A vulnerability in the SAML broker component of Keycloak allows attackers to exploit the IdP-initiated Single Sign-On endpoint, bypassing login restrictions by leveraging control over a linked upstream identity. This flaw can lead to unauthorized access to local user accounts, posing a significant risk to identity federation and user authentication processes. Organizations using Keycloak for identity management should prioritize addressing this issue to safeguard user accounts and prevent potential breaches.

CVE
CVE-2026-16442
Severity
HIGH
CVSS
7.4
EPSS
0.20%

Original NVD Description

A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking only. This allows an attacker with control over a linked upstream identity to bypass login restrictions and gain full access to a local user account.

Related CVEs

Other vulnerabilities affecting the same vendor(s)