CVE-2026-9088

Keycloak: keycloak: information disclosure due to user profile permission bypass

Published Jun 5, 2026 CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed
Description
A flaw was found in org.keycloak.services. An administrator with delegated access to read group memberships and users can bypass user profile permissions by accessing the group members endpoint. This allows the administrator to view user attributes that are explicitly configured to be denied, leading to information disclosure.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-6g26-7cx5-mrrg Keycloak: Information disclosure due to user profile permission bypass
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:build_keycloak: cpe:/a:redhat:build_keycloak:26.6::el9
References
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Redhat build Of Keycloak
Vendors & Products Redhat build Of Keycloak
Type Values Removed Values Added
Description A flaw was found in org.keycloak.services. An administrator with delegated access to read group memberships and users can bypass user profile permissions by accessing the group members endpoint. This allows the administrator to view user attributes that are explicitly configured to be denied, leading to information disclosure.
Title Keycloak: keycloak: information disclosure due to user profile permission bypass
First Time appeared Redhat
Redhat build Keycloak
Weaknesses CWE-1220
CPEs cpe:/a:redhat:build_keycloak:
Vendors & Products Redhat
Redhat build Keycloak
References
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Jun 26, 2026, 7:01 AM
Reserved
May 20, 2026, 3:01 PM
Status
Awaiting Analysis
Published
Jun 5, 2026, 8:16 AM
Modified
Jul 23, 2026, 7:10 AM
Severity
Low
Public date
Jun 5, 2026, 7:45 AM