What is CVE-2026-40999?

CVE-2026-40999 is a high-severity vulnerability in Spring Web Services, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-06-11.

How severe is CVE-2026-40999?

High severity. CVSS v3 base score is 8.6 out of 10.

SSRF in Spring Web Services

CVE-2026-40999

When WS-Addressing is used with non-anonymous ReplyTo or FaultTo addresses, Spring WS may initiate outbound connections through configured WebServiceMessageSender instances to destinations taken directly from request headers without verify…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.004 (30.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Spring Web Services — versions 5.0.0, 4.1.0, 4.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security@vmware.com

Frequently asked questions

What is CVE-2026-40999?: CVE-2026-40999 is a high-severity vulnerability in Spring Web Services, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-06-11.
How severe is CVE-2026-40999?: High severity. CVSS v3 base score is 8.6 out of 10.