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Medium severity · published Mar 26, 2026
CVE-2026-3190
Keycloak: keycloak: information disclosure via improper role enforcement in uma 2.0 protection api
4.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat build of Keycloak 26.4 · Red Hat
All versions, or not specified · source: vendor
BO
Build OF Keycloak · Redhat
All versions, or not specified · source: NVD
Affected product
RH
Red Hat build of Keycloak 26.4
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3190
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3190
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:6477
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:6478
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-3190
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2442572
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