CVE-2026-9330 [HIGH] – IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of use

IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.