Red Hat Keycloak/Single Sign-On Protocol Mapper/Identity Resolution privileges management

Summaryinfo

A vulnerability was found in Red Hat Keycloak and Single Sign-On and classified as critical. This affects an unknown part of the component Protocol Mapper/Identity Resolution. Executing a manipulation can lead to privileges management. The identification of this vulnerability is CVE-2026-97847. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Red Hat Keycloak and Single Sign-On (the affected version is unknown) and classified as critical. This vulnerability affects an unknown code of the component Protocol Mapper/Identity Resolution. 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 confidentiality, integrity, and availability. CVE summarizes:

A flaw was found in the protocol mapper and identity resolution components of Keycloak. The issue occurs when a client manager uses hardcoded-claim mappers to override identity claims in sessionless service-account tokens. Because these tokens lack a session ID, Keycloak may incorrectly resolve the token bearer as a different, highly privileged user based on the manipulated claims. This can allow an attacker with limited client management permissions to impersonate a realm administrator and gain full control over the realm.

The advisory is available at access.redhat.com. This vulnerability was named CVE-2026-97847 since 09/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 11/05/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Red Hat

Name

• Keycloak
• Single Sign-On

License

• open-source

Website

• Vendor: https://www.redhat.com/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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