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CVE-2026-14209— Keycloak-admin-ui: keycloak-admin-ui:admin ui extension brute-force-user endpoint bypasses fgapv2 user view restrictions

Quick assessment

Affected
Red Hat Red Hat build of Keycloak 26.4
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Keycloak是Keycloak组织开源的一种开源身份和访问管理解决方案。 Keycloak存在授权问题漏洞，该漏洞源于使用“brute-force-user”端点时，缺少对管理员是否拥有特定用户“view”权限的检查，可能导致绕过安全限制的管理员访问用户的完整配置文件，包括敏感信息和安全元数据。

CVSS 4.3 · Medium EPSS 0.39% · P30

Affected Version Matrix 12

VendorProduct Version RangeStatus
Red Hat Red Hat build of Keycloak 26.4 26.4.14-1< * unaffected
26.4-22< * unaffected
26.4-22< * unaffected
Red Hat Red Hat build of Keycloak 26.4.14 any unaffected
any unaffected
Red Hat Red Hat build of Keycloak 26.6 26.6.5-1< * unaffected
26.6-11< * unaffected
26.6-11< * unaffected
Red Hat Red Hat build of Keycloak 26.6.5 any unaffected
any unaffected
any unaffected
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack any affected
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I. Basic Information for CVE-2026-14209

Vulnerability Information
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Vulnerability Title
Keycloak-admin-ui: keycloak-admin-ui:admin ui extension brute-force-user endpoint bypasses fgapv2 user view restrictions
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass security restrictions. When Fine-Grained Admin Permissions (FGAPv2) are enabled, an administrator who should only be able to search for users (but not view their full details) can use a specific "brute-force-user" endpoint to access a user's full profile. This includes sensitive information and security metadata. The issue occurs because the system fails to check if the administrator has the required "view" permission for that specific user when using this particular search path.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Keycloak 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak组织开源的一种开源身份和访问管理解决方案。 Keycloak存在授权问题漏洞，该漏洞源于使用“brute-force-user”端点时，缺少对管理员是否拥有特定用户“view”权限的检查，可能导致绕过安全限制的管理员访问用户的完整配置文件，包括敏感信息和安全元数据。
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 26.4.14-1 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4 26.4-22 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4 26.4-22 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4.14 - cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4.14 - cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.6 26.6.5-1 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6 26.6-11 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6 26.6-11 ~ * cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6.5 - cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6.5 - cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat build of Keycloak 26.6.5 - cpe:/a:redhat:build_keycloak:26.6::el9
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp

II. Public POCs for CVE-2026-14209

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III. Intelligence Information for CVE-2026-14209

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Vendor Advisories for CVE-2026-14209 (6)

Same Patch Batch · Red Hat · 2026-06-30 · 6 CVEs total

CVE-2026-14164 7.5 HIGH Libarchive: double-free vulnerability in rar5 decompression logic via dangling filtered_bu
CVE-2026-12388 6.5 MEDIUM Keycloak-broker: keycloak: privilege escalation to realm administrator via improper author
CVE-2026-4629 6.5 MEDIUM Keycloak: keycloak: privilege escalation through hardcoded role mapper injection
CVE-2026-12610 6.4 MEDIUM Sssd: use-after-free crash in sssd' 'sssd_pam' process
CVE-2026-13316 4.4 MEDIUM Foreman: ssrf to cloud metada service through unvalidated test_url parameters in foreman c

IV. Related Vulnerabilities

Same product: Red Hat build of Keycloak 26.4
Same vendor: Red Hat
Same weakness: CWE-639

V. Comments for CVE-2026-14209

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