CVE-2026-13772
IBM WebSphere eXtreme Scale's OQL is affected by remote code execution
- State
- Published
- Severity
- 7.5 High
- Published
- Jun 30, 2026
- Updated
- Jul 3, 2026
- Reserved
- Jun 29, 2026
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
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | ibm |
Weaknesses
- CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Affected Products
| Product | Versions |
|---|---|
WebSphere Extreme ScaleIBM |
|
References
- https://www.ibm.com/support/pages/node/7278593vendor-advisorypatch
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