VULNERABILITY INTELLIGENCE

CVE-2026-13772

CVSS score7.5 HIGH
EPSS probability0.51%
CISA KEVNot currently listed
Published2026-06-30
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Weakness classification

  • psirt@us.ibm.com: CWE-470
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references