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CVE-2025-13881

Good to know:

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Date: February 2, 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.

Severity Score

Related Resources (8)

https://nvd.nist.gov/vuln/detail/CVE-2025-13881
https://access.redhat.com/security/cve/CVE-2025-13881
https://github.com/keycloak/keycloak/pull/45427
https://bugzilla.redhat.com/show_bug.cgi?id=2418330
https://github.com/keycloak/keycloak/issues/45873
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/commit/c5c83d6604d4c73139f38fce3ed7b7c4c38c09f2
https://www.mend.io/vulnerability-database/CVE-2025-13881

Severity Score

Weakness Type (CWE)

Incorrect Privilege Assignment

CWE-266

Top Fix

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Upgrade Version

Upgrade to version org.keycloak:keycloak-server-spi-private:26.5.2;org.keycloak:keycloak-services:26.5.2;https://github.com/keycloak/keycloak.git - 26.5.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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