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CVE-2026-3009

Org.keycloak/keycloak-services: improper enforcement of disabled identity provider in identitybrokerservice (authentication bypass)

Published: Mar 5, 2026Updated: Mar 5, 2026 Sources: CVE List NVD GHSACWE-285
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.3%
Top 75.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:N
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:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-285

Affected Products

org.keycloak:keycloak-servicesMavenOSS Libraries
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
Red Hat JBoss Enterprise Application Platform 8Red Hat
On-premWeb App
Enterprise Software / itsm-monitoring
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
On-premOS
Operating Systems / linux-distro
mavenpackage-ecosystemOSS Libraries
red hatcommercialUSOperating Systemsaka red hat
and 1 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://access.redhat.com/errata/RHSA-2026:3947
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3948
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-3009
access.redhat.com
and 6 more references View all →

Timeline

Published
Mar 5, 2026
Last Updated
Mar 5, 2026

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