Red Hat Keycloak Group Policy Provider privileges management

Summaryinfo

A vulnerability was found in Red Hat Keycloak. It has been rated as problematic. This affects an unknown function of the component Group Policy Provider. This manipulation causes privileges management. This vulnerability is handled as CVE-2026-19608. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Red Hat Keycloak (version unknown) and classified as problematic. Affected by this vulnerability is an unknown function of the component Group Policy Provider. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine-grained access control to resources. The issue occurs when the system evaluates group-based policies using tokens that only contain group names rather than full paths. If two groups in different parts of the organization share the same name, a user in the unauthorized group can be mistaken for a member of the authorized group. This can allow a user to gain unauthorized access to protected resources they should not be able to reach.

It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2026-19608 since 08/12/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/18/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

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

License

• open-source

Website

• Vendor: https://www.redhat.com/

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