What is CVE-2026-40989?

CVE-2026-40989 is a medium-severity vulnerability in Spring Cloud Function, classified under Uncontrolled Recursion. CVSS score: 5.7/10. Published 2026-06-01.

How severe is CVE-2026-40989?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Vulnerability in Spring Cloud Function

CVE-2026-40989

Under infinite recursion in the routing layer, request-handling can cause OOM error. Affected Spring Products and Versions: Spring Cloud Function 3.2.x: versions prior to 3.2.16 Spring Cloud Function 4.1.x: versions prior to 4.1.10 Spring…

EPSS: 0.000 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:H.

Affected products

Spring Cloud Function — versions 3.2.0, 4.1.0, 4.2.0
Vmware Spring_cloud_function

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

security@vmware.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-40989?: CVE-2026-40989 is a medium-severity vulnerability in Spring Cloud Function, classified under Uncontrolled Recursion. CVSS score: 5.7/10. Published 2026-06-01.
How severe is CVE-2026-40989?: Medium severity. CVSS v3 base score is 5.7 out of 10.