MEDIUM 5.7 NVD
CVE-2026-105302
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
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.
References
- https://access.redhat.com/security/cve/CVE-2026-105302
- https://bugzilla.redhat.com/show_bug.cgi?id=2545800
This medium severity vulnerability with a CVSS score of 5.7 was published on 2026-10-05 via NVD.
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