HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-16442 — A flaw was found in the SAML broker component of Keycloak, which is used to mana...

·Source: NIST NVD

Updated:

Executive Summary

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 ac

Analysis

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. CVSS Score: 7.4. Published: 2026-08-05T16:16:52.027.

Indicators of Compromise (1)

CVE (1)
CVE-2026-16442
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 5, 2026. Verified by: NIST.

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