CVE-2026-40999 HIGH

CVE-2026-40999: Spring WS SSRF via unvalidated WS-Addressing reply destinations

Vendor Spring
Product Spring Web Services
Weakness CWE-918 · SSRF
Published June 11, 2026
Last update June 11, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

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 verifying that those destinations are safe to connect to. Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 11, 2026 Record updated