NVD HIGH: CVE-2026-13759 — IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 ships three ObjectInputStrea...
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, multiple RCE gadget chains including RemoteConstructor.readResolve and PriorityQueue/ExtractorComparator are confirmed working, allowing a post-lo
CVE-2026-13759