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CVE-2025-14778— Keycloak: incorrect ownership checks in /uma-policy/

Quick assessment

Affected
Red Hat Red Hat build of Keycloak 26.2
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UserManagedPermissionService存在访问控制缺陷，可能导致水平权限提升。

CVSS 5.4 · Medium EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-14778

Vulnerability Information
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Vulnerability Title
Keycloak: incorrect ownership checks in /uma-policy/
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5
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UserManagedPermissionService存在访问控制缺陷，可能导致水平权限提升。
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 26.2 26.2.13-1 ~ * cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.2 26.2-15 ~ * cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.2 26.2-15 ~ * cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.2.13 - cpe:/a:redhat:build_keycloak:26.2::el9
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

II. Public POCs for CVE-2025-14778

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III. Intelligence Information for CVE-2025-14778

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Same Patch Batch · Red Hat · 2026-02-09 · 3 CVEs total

CVE-2026-1486 8.8 HIGH Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt
CVE-2026-1529 8.1 HIGH Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registr

IV. Related Vulnerabilities

Same product: Red Hat build of Keycloak 26.2
Same vendor: Red Hat
Same weakness: CWE-266

V. Comments for CVE-2025-14778

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