CVE-2026-13772 – IBM WebSphere eXtreme Scale’s OQL is affected by remote code execution

CVE ID :CVE-2026-13772

Published : June 30, 2026, 7:21 p.m. | 24 minutes ago

Description :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-based comparators); an authenticated remote attacker who can influence an application-built OQL query string can execute arbitrary constructors on the WAS JVM, and a SELECT DISTINCT variant using planted grid values fires the same gadget post-readObject in a manner that survives JEP-290 serialization filters across grid node boundaries

Severity: 7.5 | HIGH

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