Keycloak: incorrect ownership checks in /uma-policy/
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 |
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| Red Hat | Red Hat build of Keycloak 26.2 | affected |
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| Red Hat | Red Hat build of Keycloak 26.2 | affected |
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| Red Hat | Red Hat build of Keycloak 26.2.13 | unaffected | — | ||||||
| Red Hat | Red Hat build of Keycloak 26.4 | affected |
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| Red Hat | Red Hat build of Keycloak 26.4 | affected |
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| Red Hat | Red Hat build of Keycloak 26.4 | affected |
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| 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 |
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Build Of Keycloak | — |
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.
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-fm6w-rrp3-2x4w | Keycloak Affected by Broken Access Control Vulnerability in the UserManagedPermissionService |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.318% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat build Of Keycloak
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| Vendors & Products |
Redhat build Of Keycloak
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:build_keycloak:26.2::el9 | |
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| 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 |
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| Weaknesses | CWE-266 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
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| References |
| |
| Metrics |
cvssV3_1
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