CVE-2026-3047CWE-305

Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login

High · published March 5, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
59.6
In the wild
Unconfirmed
What it is

A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00910 · 59.6th percentile
Weakness
CWE-305 · Authentication Bypass by Primary Weakness
Published
2026-03-05T18:28Z
EPSS history
Timeline
  • 05 MAR 18:28Z
    Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
    cvelistv5