CVE-2026-4636
1 advisory.
Maven/org.keycloak:keycloak-services CVE-2026-4636: high 8.1, EPSS 0.48%
Keycloak: UMA Policy Resource Injection Allows Unauthorized Cross-User Permission Grants
Action: Upgrade org.keycloak:keycloak-services to 26.5.7 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 26.5.7 | - |
Fixed versions
| 26.5.7 |
Sources
- osv: GHSA-f2hx-5fx3-hmcv
- https://nvd.nist.gov/vuln/detail/CVE-2026-4636
- https://github.com/keycloak/keycloak/issues/47717
- https://github.com/keycloak/keycloak/commit/995832f8b74b02833d106c8788bb7a78634aa725
- https://access.redhat.com/errata/RHSA-2026:6475
- https://access.redhat.com/errata/RHSA-2026:6476
- https://access.redhat.com/errata/RHSA-2026:6477
- https://access.redhat.com/errata/RHSA-2026:6478
- https://access.redhat.com/security/cve/CVE-2026-4636
- https://bugzilla.redhat.com/show_bug.cgi?id=2450251
- https://github.com/keycloak/keycloak
CVE-2026-4636 · published · modified · JSON