RCE in VMware Spring Cloud Gateway Server Webflux
CVE-2025-41253
The following versions of Spring Cloud Gateway Server Webflux may be vulnerable to the ability to expose environment variables and system properties to attackers. An application should be considered vulnerable when all the following are true: * The application is using Spring Cloud Gateway Server Webflux (Spring Cloud Gateway Server WebMVC is not vulnerable). * An admin or untrusted third party using Spring Expression Language (SpEL) to access environment variables or system properties via routes. * An untrusted third party could create a route that uses SpEL to access environment variables or system properties if: * The Spring Cloud Gateway Server Webflux actuator web endpoint is enabled via management.endpoints.web.exposure.include=gateway and management.endpoint.gateway.enabled=trueor management.endpoint.gateway.access=unrestricte. * The actuator endpoints are available to attackers. * The actuator endpoints are unsecured.
Vulnerability class: Log4Shell (CVE-2021-44228)
EPSS: 0.004 (36.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Vmware Spring Cloud Gateway Server Webflux — versions 3.1.x, 4.0.x, 4.1.x
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-41253?
- CVE-2025-41253 is a high-severity vulnerability in VMware Spring Cloud Gateway Server Webflux, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 7.5/10. Published 2025-10-16.
- How severe is CVE-2025-41253?
- High severity. CVSS v3 base score is 7.5 out of 10.