Red Hat Keycloak/Single Sign-On UserManagedPermissionService resourceType privileges management

Summaryinfo

A vulnerability has been found in Red Hat Keycloak and Single Sign-On and classified as critical. The affected element is an unknown function of the component UserManagedPermissionService. The manipulation of the argument resourceType leads to privileges management. This vulnerability is referenced as CVE-2026-114232. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Red Hat Keycloak and Single Sign-On (the affected version unknown). This issue affects an unknown part of the component UserManagedPermissionService. The manipulation of the argument resourceType with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in the UserManagedPermissionService of the Keycloak authorization server. The UMA Protection API, which manages user permissions, fails to validate the resourceType field when a user creates a new policy. This allows an attacker to create a policy that applies to resources owned by other users, potentially leading to unauthorized access or modification of sensitive data across the entire realm.

The advisory is shared at access.redhat.com. The identification of this vulnerability is CVE-2026-114232 since 10/21/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/05/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Red Hat

Name

• Keycloak
• Single Sign-On

License

• open-source

Website

• Vendor: https://www.redhat.com/

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