{"id":"CVE-2026-9330","title":"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","summary":"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 r…","severity":"high","cvss":8.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"ibm","product":"websphere_application_server","affected":["websphere_application_server >= 8.5.0.0, < 8.5.5.30","websphere_application_server >= 9.0.0.0, < 9.0.5.29"],"patched":["websphere_application_server 9.0.5.29"],"published":"2026-06-01","updated":"2026-07-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-9330","references":[{"url":"https://www.ibm.com/support/pages/node/7274733","label":"psirt@us.ibm.com"}],"tags":["nvd"],"epss":0.00515,"epssPercentile":0.42705,"ingestedAt":"2026-07-23T07:14:47.020Z","slug":"CVE-2026-9330","body":"## Overview\n\nIBM 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.\n\n## Affected\n\n- `websphere_application_server >= 8.5.0.0, < 8.5.5.30`\n- `websphere_application_server >= 9.0.0.0, < 9.0.5.29`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `websphere_application_server 9.0.5.29`","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":46.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}