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Product · IBM

WebSphere Extreme Scale

10 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • High 7.5
    CVE-2026-13759

    IBM WebSphere eXtreme Scale is affected by Insecure Deserilization

    IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 ships three ObjectInputStream subclasses (WsObjectInputStream, ObjectStreamPool$ReusableInputStream, ObjectInputStreamResolver) that install no JEP-290 class filter; when Coherence is on the classpath, multi…

    IBM WebSphere Extreme Scale
  • High 7.5
    CVE-2026-13772

    IBM WebSphere eXtreme Scale's OQL is affected by remote code execution

    IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 's Object Query Language engine resolves attacker-supplied class names via Class.forName() and invokes their constructors with no allow-list at three distinct sinks (SELECT NEW, enum literals, and reflection…

    IBM WebSphere Extreme Scale