A privilege escalation flaw was found in the token exchange feature of keycloak. Missing authorization allows a client application holding a valid access token to exchange tokens for any target client by passing the client_id of the target. This could allow a client to gain unauthorized access to additional services.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
| Link | Tags |
|---|---|
| https://github.com/keycloak/keycloak/security/advisories/GHSA-75p6-52g3-rqc8 | third party advisory |