What is CVE-2026-13772?

CVE-2026-13772 is a high-severity vulnerability in Ibm Websphere Extreme Scale, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 7.5/10. Published 2026-06-30.

How severe is CVE-2026-13772?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Ibm Websphere Extreme Scale

CVE-2026-13772

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 lite…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Websphere Extreme Scale — versions 8.6.1.0

Weakness classification (CWE)

CWE-470 — Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection)

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-13772?: CVE-2026-13772 is a high-severity vulnerability in Ibm Websphere Extreme Scale, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 7.5/10. Published 2026-06-30.
How severe is CVE-2026-13772?: High severity. CVSS v3 base score is 7.5 out of 10.