What is CVE-2026-41840?

CVE-2026-41840 is a medium-severity vulnerability in Spring Framework, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.9/10. Published 2026-06-09.

How severe is CVE-2026-41840?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Spring Framework

CVE-2026-41840

Spring WebFlux applications are vulnerable to Denial of Service (DoS) attacks when processing multipart requests. Affected versions: Spring Framework 7.0.0 through 7.0.7, 6.2.0 through 6.2.18, 6.1.0 through 6.1.27, 5.3.0 through 5.3.48.

EPSS: 0.002 (16.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Spring Framework — versions 7.0.0, 6.2.0, 6.1.0
Vmware Spring_framework

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

security@vmware.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-41840?: CVE-2026-41840 is a medium-severity vulnerability in Spring Framework, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.9/10. Published 2026-06-09.
How severe is CVE-2026-41840?: Medium severity. CVSS v3 base score is 5.9 out of 10.