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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Red Hat Red Hat build of Keycloak 26.2 affected
Version Status Constraints
26.2.13-1 unaffected < *
Red Hat Red Hat build of Keycloak 26.2 affected
Version Status Constraints
26.2-15 unaffected < *
Red Hat Red Hat build of Keycloak 26.2 affected
Version Status Constraints
26.2-15 unaffected < *
Red Hat Red Hat build of Keycloak 26.2.13 unaffected —
Red Hat Red Hat build of Keycloak 26.4 affected
Version Status Constraints
26.4.9-1 unaffected < *
Red Hat Red Hat build of Keycloak 26.4 affected
Version Status Constraints
26.4-11 unaffected < *
Red Hat Red Hat build of Keycloak 26.4 affected
Version Status Constraints
26.4-10 unaffected < *
Red Hat Red Hat build of Keycloak 26.4.9 unaffected —

No data.

Package CPE Advisory Released Date
Red Hat build of Keycloak 26.2
keycloak-rhel9-container-26.2-15 cpe:/a:redhat:build_keycloak:26.2::el9 RHSA-2026:2364 2026-02-09T00:00:00Z
keycloak-rhel9-operator-bundle-container-26.2.13-1 cpe:/a:redhat:build_keycloak:26.2::el9 RHSA-2026:2364 2026-02-09T00:00:00Z
keycloak-rhel9-operator-container-26.2-15 cpe:/a:redhat:build_keycloak:26.2::el9 RHSA-2026:2364 2026-02-09T00:00:00Z

No data.

Project Subscriptions

Vendors Products
Redhat Subscribe
Build Keycloak Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

References
Link Providers
https://access.redhat.com/errata/RHSA-2026:2363 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:2364 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:2365 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:2366 cve-icon cve-icon
https://access.redhat.com/security/cve/CVE-2025-14778 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2422600 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-14778 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-14778 cve-icon
History

Tue, 10 Feb 2026 01:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:build_keycloak:26.4::el9
References

Tue, 10 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Mon, 09 Feb 2026 21:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:build_keycloak: cpe:/a:redhat:build_keycloak:26.2::el9
References

Mon, 09 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 09 Feb 2026 19:30:00 +0000

Type Values Removed Values Added
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.
Title Keycloak: incorrect ownership checks in /uma-policy/
First Time appeared Redhat
Redhat build Keycloak
Weaknesses CWE-266
CPEs cpe:/a:redhat:build_keycloak:
Vendors & Products Redhat
Redhat build Keycloak
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-02-10T01:04:37.407Z

Reserved: 2025-12-16T05:02:19.510Z

Link: CVE-2025-14778

cve-icon Vulnrichment

Updated: 2026-02-09T19:51:48.295Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-09T20:15:54.470

Modified: 2026-02-10T02:15:52.017

Link: CVE-2025-14778

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-09T18:24:00Z

Links: CVE-2025-14778 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses