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CVE-2026-3047

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

Published: Mar 5, 2026Updated: Mar 5, 2026 Sources: CVE List NVD GHSACWE-305
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.5%
Top 63.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-305

Affected Products

org.keycloak:keycloak-broker-samlMavenOSS Libraries
Red Hat build of Keycloak 26.2Red Hat
On-prem
Operating Systems / linux-distro
Red Hat build of Keycloak 26.2.14Red Hat
On-prem
Operating Systems / linux-distro
Red Hat build of Keycloak 26.4Red Hat
On-premWeb App
Web & CMS Plugins
Red Hat build of Keycloak 26.4.10Red Hat
On-prem
Operating Systems / linux-distro
mavenpackage-ecosystemOSS Libraries
red hatcommercialUSOperating Systemsaka red hat

Exploitability

Workaround Available

References

https://access.redhat.com/errata/RHSA-2026:3925
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3926
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3947
access.redhat.com
and 6 more references View all →

Timeline

Published
Mar 5, 2026
Last Updated
Mar 5, 2026

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