CVE-2026-2366

Keycloak: keycloak: information disclosure via authorization bypass in admin api

Published: Mar 12, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-639

3.1LOW

Description

A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This information disclosure occurs if the attacker knows the victim's unique identifier (UUID) and the Organizations feature is enabled.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-639

Affected Products

Red Hat

commercial·USaka redhat

Red Hat build of Keycloak 26.4On-premWeb App

Web & CMS Plugins

Red Hat build of Keycloak 26.4.11On-premSecurity Product

Security Products / identity-access-mgmt

build of keycloakOn-prem

Operating Systems / linux-distro

Exploitability

Official Patch Available

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://access.redhat.com/errata/RHSA-2026:6477

access.redhat.com

https://access.redhat.com/errata/RHSA-2026:6478

access.redhat.com

https://access.redhat.com/security/cve/CVE-2026-2366

access.redhat.com

and 1 more references View all →

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