Keycloak: keycloak: uma policy bypass allows authenticated users to gain unauthorized access to victim-owned resources.
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 26.2.15 | 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 26.4.11 | unaffected | — |
Configuration 1 [-]
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| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat build of Keycloak 26.2 | |||
| rhbk/keycloak-operator-bundle:26.2.15-1 | cpe:/a:redhat:build_keycloak:26.2::el9 | RHSA-2026:6476 | 2026-04-02T00:00:00Z |
| rhbk/keycloak-rhel9:26.2-18 | cpe:/a:redhat:build_keycloak:26.2::el9 | RHSA-2026:6476 | 2026-04-02T00:00:00Z |
| rhbk/keycloak-rhel9-operator:26.2-18 | cpe:/a:redhat:build_keycloak:26.2::el9 | RHSA-2026:6476 | 2026-04-02T00:00:00Z |
| Red Hat build of Keycloak 26.2.15 | |||
| rhbk/keycloak-rhel9 | cpe:/a:redhat:build_keycloak:26.2::el9 | RHSA-2026:6475 | 2026-04-02T00:00:00Z |
| Red Hat build of Keycloak 26.4 | |||
| rhbk/keycloak-operator-bundle:26.4.11-1 | cpe:/a:redhat:build_keycloak:26.4::el9 | RHSA-2026:6478 | 2026-04-02T00:00:00Z |
| rhbk/keycloak-rhel9:26.4-14 | cpe:/a:redhat:build_keycloak:26.4::el9 | RHSA-2026:6478 | 2026-04-02T00:00:00Z |
| rhbk/keycloak-rhel9-operator:26.4-14 | cpe:/a:redhat:build_keycloak:26.4::el9 | RHSA-2026:6478 | 2026-04-02T00:00:00Z |
| Red Hat build of Keycloak 26.4.11 | |||
| rhbk/keycloak-rhel9 | cpe:/a:redhat:build_keycloak:26.4::el9 | RHSA-2026:6477 | 2026-04-02T00:00:00Z |
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Redhat | Build Of Keycloak |
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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-f2hx-5fx3-hmcv | Keycloak: UMA Policy Resource Injection Allows Unauthorized Cross-User Permission Grants |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.436% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:* cpe:2.3:a:redhat:build_of_keycloak:26.2.15:*:*:*:text-only:*:*:* cpe:2.3:a:redhat:build_of_keycloak:26.2:*:*:*:text-only:*:*:* cpe:2.3:a:redhat:build_of_keycloak:26.4.11:*:*:*:text-only:*:*:* cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:text-only:*:*:* |
| 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 |
|---|---|---|
| First Time appeared |
Redhat build Of Keycloak
|
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| CPEs | cpe:/a:redhat:build_keycloak:26.2::el9 | |
| Vendors & Products |
Redhat build Of Keycloak
|
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| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| References |
| |
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions. | |
| Title | Keycloak: keycloak: uma policy bypass allows authenticated users to gain unauthorized access to victim-owned resources. | |
| First Time appeared |
Redhat
Redhat build Keycloak |
|
| Weaknesses | CWE-551 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
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| References |
| |
| Metrics |
cvssV3_1
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