CVE-2026-9088
Published:June 05, 2026
Updated:June 07, 2026
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.
Affected Packages
https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) >=26.3.0 <26.6.3Fix Suggestion:
Update to version 26.6.3org.keycloak:keycloak-services (JAVA):
Affected version(s) >=26.3.0 <26.6.3Fix Suggestion:
Update to version 26.6.3org.keycloak:keycloak-server-spi-private (JAVA):
Affected version(s) >=26.3.0 <26.6.3Fix Suggestion:
Update to version 26.6.3Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
2.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Insufficient Granularity of Access Control
EPSS
Base Score:
0.01