CVE-2026-3190
MEDIUM4.3EPSS 0.01%Keycloak: Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure
Published: 3/26/2026Modified: 4/2/2026
Description
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 (3)
- Maven/org.keycloak:keycloak-model-jpafrom 0, < 26.5.6
- Maven/org.keycloak:keycloak-server-spi-privatefrom 0, < 26.5.6
- Maven/org.keycloak:keycloak-servicesfrom 0, < 26.5.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
References (8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-3190
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/errata/RHSA-2026:6477
- WEBhttps://access.redhat.com/errata/RHSA-2026:6478
- WEBhttps://access.redhat.com/security/cve/CVE-2026-3190
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2442572
- WEBhttps://github.com/keycloak/keycloak/commit/f1baf25cbb1551202570f954102eb2d270ab0694
- WEBhttps://github.com/keycloak/keycloak/issues/46723