medium4.3
CVE-2026-3190
Keycloak: Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure
Impact
A flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the `uma_protection` role check. This allows any authenticated user with a token issued for a resource server client, even without the `uma_protection` role, to enumerate all permission tickets in the system. This vulnerability partial leads to information disclosure.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.keycloak:keycloak-server-spi-private | < 26.5.6 | 26.5.6 |
| maven | org.keycloak:keycloak-services | < 26.5.6 | 26.5.6 |
| maven | org.keycloak:keycloak-model-jpa | < 26.5.6 | 26.5.6 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Build Of Keycloak | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-q35r-vvhv-vx5h
- https://nvd.nist.gov/vuln/detail/CVE-2026-3190
- https://access.redhat.com/security/cve/CVE-2026-3190
- https://bugzilla.redhat.com/show_bug.cgi?id=2442572
- https://github.com/keycloak/keycloak/issues/46723
- https://github.com/keycloak/keycloak/commit/f1baf25cbb1551202570f954102eb2d270ab0694
- https://access.redhat.com/errata/RHSA-2026:6477
- https://access.redhat.com/errata/RHSA-2026:6478