A vulnerability was found in IBM WebSphere Application Server up to 1.1.9.12/8.5 . It has been classified as problematic . The impacted element is an unknown function of the component JAX-WS Endpoint . The manipulation leads to deserialization. This vulnerability is referenced as CVE-2026-9319 . Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.