Vulnerability Details CVE-2026-9330
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 58.1%
CVSS Severity
CVSS v3 Score 8.5
Products affected by CVE-2026-9330
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cpe:2.3:a:ibm:websphere_application_server:8.5.5.25
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cpe:2.3:a:ibm:websphere_application_server:9.0.0.0
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cpe:2.3:a:ibm:websphere_application_server:9.0.5.19