CVE-2026-3190
Keycloak: Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure
4.3
MEDIUM
CVSS 3.1
EPSS 0.01%
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.
How to fix CVE-2026-3190
To remediate CVE-2026-3190, upgrade the affected package to a fixed version below.
- —upgrade to 26.5.6 or later
- —upgrade to 26.5.6 or later
- —upgrade to 26.5.6 or later
Is CVE-2026-3190 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 26.5.6
- from 0, < 26.5.6
- from 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 |