CVE-2026-9330High· 8.5▾ TwilightIBM 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 46.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.5%
0.5% → 0.5%
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.
websphere_application_server >= 8.5.0.0, < 8.5.5.30websphere_application_server >= 9.0.0.0, < 9.0.5.29Upgrade past the affected range:
websphere_application_server 9.0.5.29Connected by shared product, vendor, weakness, or advisory.
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