Description
A flaw was found in the User Session Note mapper of the Keycloak identity and access management solution. The issue occurs because the mapper does not validate whether a requested session note contains sensitive internal credentials, such as federated access tokens from external identity providers. This allows a delegated client administrator to leak a user's upstream bearer tokens into the tokens issued to their managed application, potentially leading to unauthorized access to the user's data on external platforms.
Metrics
CVSS 3.1 5.7/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Build of Keycloak | — |
| Red Hat | Red Hat Build of Keycloak | — |
| Red Hat | Red Hat Single Sign-On 7 | — |
References
Timeline
- Published
- Oct 5, 2026
- Last modified
- Oct 6, 2026
- NVD status
- Awaiting Analysis