CVE-2026-0871— Org.keycloak/keycloak-services: keycloak: unauthorized modification of unmanaged user attributes by administrators
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I. Basic Information for CVE-2026-0871
Vulnerability Information
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Vulnerability Title
Org.keycloak/keycloak-services: keycloak: unauthorized modification of unmanaged user attributes by administrators
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权授予不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Keycloak 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak存在安全漏洞，该漏洞源于访问控制不当，可能导致具有manage-users权限的管理员绕过设置并修改非托管属性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.9-1 ~ * | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-11 ~ * | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-10 ~ * | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat build of Keycloak 26.4.9 | - | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | - | cpe:/a:redhat:jboss_enterprise_application_platform:8 | |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | - | cpe:/a:redhat:jbosseapxp | |
| Red Hat | Red Hat Single Sign-On 7 | - | cpe:/a:redhat:red_hat_single_sign_on:7 |
II. Public POCs for CVE-2026-0871
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|---|
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Same Patch Batch · Red Hat · 2026-02-27 · 5 CVEs total
| CVE-2026-0980 | 8.3 HIGH | Rubyipmi: red hat satellite: remote code execution in rubyipmi via malicious bmc username |
| CVE-2025-9909 | 6.7 MEDIUM | Aap-gateway: improper path validation in gateway allows credential exfiltration |
| CVE-2025-9908 | 6.7 MEDIUM | Event-driven-ansible: sensitive internal headers disclosure in aap eda event streams |
| CVE-2025-9907 | 6.7 MEDIUM | Event-driven-ansible: event stream test mode exposes sensitive headers in aap eda |
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V. Comments for CVE-2026-0871
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