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Fencer Vulns
medium 5.4

CVE-2025-14778 json

Keycloak: incorrect ownership checks in /uma-policy/

published 2026-02-09 8 mo ago modified 2026-06-17 4 mo ago also GHSA-fm6w-rrp3-2x4w , EUVD-2025-207164

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.keycloak:keycloak-services 26.2.13, 26.4.9, 26.5.3
  • Red Hat Red Hat build of Keycloak 26.2 26.2-15, 26.2.13-1
  • Red Hat Red Hat build of Keycloak 26.4 26.4-10, 26.4-11, 26.4.9-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-14778 updated cvss 5.4

keycloak: Incorrect ownership checks in /uma-policy/

  • Red Hat build of Keycloak 26.2 rhbk/keycloak-rhel9 26.2-15, rhbk/keycloak-rhel9-operator 26.2-15, rhbk/keycloak-operator-bundle 26.2.13-1
    fixed: vendor fix RHSA-2026:2364
  • Red Hat build of Keycloak 26.2.13
    fixed: vendor fix RHSA-2026:2363
  • Red Hat build of Keycloak 26.4 rhbk/keycloak-rhel9 26.4-11, rhbk/keycloak-rhel9-operator 26.4-10, rhbk/keycloak-operator-bundle 26.4.9-1
    fixed: vendor fix RHSA-2026:2366
  • Red Hat build of Keycloak 26.4.9
    fixed: vendor fix RHSA-2026:2365

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
maven org.keycloak:keycloak-services
<26.2.13
>=26.5.0, <26.5.3
>=26.3.0, <26.4.9
26.2.13
26.5.3
26.4.9

Affected products

  • Red Hat Red Hat build of Keycloak 26.2
  • Red Hat Red Hat build of Keycloak 26.2.13
  • Red Hat Red Hat build of Keycloak 26.4
  • Red Hat Red Hat build of Keycloak 26.4.9

Classification

Weakness
  • CWE-266 Incorrect Privilege Assignment

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.