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CVE-2025-13881
February 02, 2026
A flaw was found in Keycloak Admin API. This vulnerability allows an administrator with limited privileges to retrieve sensitive custom attributes via the /unmanagedAttributes endpoint, bypassing User Profile visibility settings.
Affected Packages
https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) >=1.0-alpha-1 <26.5.2
Fix Suggestion:
Update to version 26.5.2
org.keycloak:keycloak-server-spi-private (JAVA):
Affected version(s) >=2.4.0.CR1 <26.5.2
Fix Suggestion:
Update to version 26.5.2
org.keycloak:keycloak-services (JAVA):
Affected version(s) >=26.5.0 <26.5.2
Fix Suggestion:
Update to version 26.5.2
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CVSS 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)
Incorrect Privilege Assignment
EPSS
Base Score:
0.01