CVE-2026-40999 Spring WS SSRF via unvalidated WS-Addressing reply destinations
Attackers can force the application to make arbitrary outbound requests via unvalidated WS-Addressing headers, potentially accessing internal resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-40999?
CVE-2026-40999 is a high-severity server-side request forgery vulnerability in Spring Web Services, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-40999?
8 open source packages ship an affected version, including org.springframework.ws:spring-ws-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework.ws:spring-ws-core Maven | From 3.1.0 to 3.1.8 | None |
org.springframework.ws:spring-ws-core Maven | From 3.1.0 to 3.1.8 | None |
org.springframework.ws:spring-ws-core Maven | From 4.0.0 to 4.0.18 | None |
org.springframework.ws:spring-ws-core Maven | From 4.0.0 to 4.0.18 | None |
org.springframework.ws:spring-ws-core Maven | From 4.1.0 | 4.1.4 |
org.springframework.ws:spring-ws-core Maven | From 4.1.0 | 4.1.4 |
2 more packages
org.springframework.ws:spring-ws-core Maven | From 5.0.0 | 5.0.2 |
org.springframework.ws:spring-ws-core Maven | From 5.0.0 | 5.0.2 |
Products include Broadcom Spring Web Services.
How do I fix CVE-2026-40999?
Upgrade org.springframework.ws:spring-ws-core to a fixed version for your release line: 4.1.4 or 5.0.2.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-40999 being exploited?
There is no known exploitation of CVE-2026-40999 in the wild and no public exploit code.
Other vulnerabilities in Spring Web Services
- CVE-2019-3773 Spring Web Services XML External Entity Injection (XXE)
- CVE-2026-40994 Wss4jSecurityInterceptor disables WS-I BSP validation by default
- CVE-2026-40998 Jaxp13 XPath XXE via StreamSource and SAXSource
- CVE-2026-40995 X.509 authentication bypasses Spring Security account checks
- CVE-2026-40997 SOAP security faults leak Spring Security account state
Sources
Also known as GHSA-whpp-xv3h-rwxf, ROOT-APP-MAVEN-CVE-2026-40999.