CVE-2026-0871

MEDIUM

Keycloak - Privilege Escalation

Title source: llm
STIX 2.1

Description

A flaw was found in Keycloak. An administrator with `manage-users` permission can bypass the "Only administrators can view" setting for unmanaged attributes, allowing them to modify these attributes. This improper access control can lead to unauthorized changes to user profiles, even when the system is configured to restrict such modifications.

Scores

CVSS v3 4.9
EPSS 0.0001
EPSS Percentile 1.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-266
Status published
Products (4)
org.keycloak/keycloak-server-spi-private 0 - 26.5.2Maven
redhat/build_of_keycloak
redhat/build_of_keycloak < 26.4.9
redhat/keycloak < 26.4.0
Published Feb 27, 2026
Tracked Since Feb 27, 2026