Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-fm6w-rrp3-2x4w
Advisory ID github_osv/GHSA-fm6w-rrp3-2x4w
Aliases CVE-2025-14778
Summary Keycloak Affected by Broken Access Control Vulnerability in the UserManagedPermissionService 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.
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-266 Incorrect Privilege Assignment
System Score Found at
cvssv3.1 5.4 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-fm6w-rrp3-2x4w/GHSA-fm6w-rrp3-2x4w.json
generic_textual MODERATE
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2422600
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/issues/46147
https://github.com/keycloak/keycloak/pull/46154
CVE-2025-14778 https://access.redhat.com/security/cve/CVE-2025-14778
CVE-2025-14778 https://nvd.nist.gov/vuln/detail/CVE-2025-14778
RHSA-2026:2363 https://access.redhat.com/errata/RHSA-2026:2363
RHSA-2026:2364 https://access.redhat.com/errata/RHSA-2026:2364
RHSA-2026:2365 https://access.redhat.com/errata/RHSA-2026:2365
RHSA-2026:2366 https://access.redhat.com/errata/RHSA-2026:2366
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-fm6w-rrp3-2x4w/GHSA-fm6w-rrp3-2x4w.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-09T19:51:45Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/14xxx/CVE-2025-14778.json

Source Advisory: vulnrichment/CVE-2025-14778

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]