What is CVE-2026-47888?

CVE-2026-47888 is a high-severity vulnerability in Spring Framework, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2026-08-27.

How severe is CVE-2026-47888?

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

Vulnerability in Spring Framework

CVE-2026-47888

A Spring RSocket application is exposed to a memory leak via a malformed SETUP frame. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.0.RELEASE - 5.2.25.RELEASE

EPSS: 0.002 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Spring Framework

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

security@vmware.com

Frequently asked questions

What is CVE-2026-47888?: CVE-2026-47888 is a high-severity vulnerability in Spring Framework, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2026-08-27.
How severe is CVE-2026-47888?: High severity. CVSS v3 base score is 7.5 out of 10.