AUGUST 4, 2026
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Case File

CVE-2026-2603

HIGH · CVSS 8.1 EPSS 0.41%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-03-18 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It may be remotely exploitable.

CVE
CVE-2026-2603
Severity
HIGH
CVSS
8.1
EPSS
0.41%

Original NVD Description

A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is disabled, leading to unauthorized authentication.