Vulnerability · Published Sep 16, 2025 · Assigned by vmware
CVE-2025-41243Spring Expression Language property modification using Spring Cloud Gateway Server WebFlux
Critical 10.0
In plain English
A critical-severity expression language injection in Cloud Gateway from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
Spring Cloud Gateway Server Webflux may be vulnerable to Spring Environment property modification. 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). * Spring Boot actuator is a dependency. * The Spring Cloud Gateway Server Webflux actuator web endpoint is enabled via management.endpoints.web.exposure.include=gateway. * The actuator endpoints are available to attackers. * The actuator endpoints are unsecured.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.springframework.cloud:spring-cloud-gateway-server-webflux | no fix listed | GHSA-q2cj-h8fw-q4cc |
| Maven | org.springframework.cloud:spring-cloud-gateway-server-webflux | no fix listed | GHSA-q2cj-h8fw-q4cc |
| Maven | org.springframework.cloud:spring-cloud-gateway-server-webflux | 4.2.5 | GHSA-q2cj-h8fw-q4cc |
| Maven | org.springframework.cloud:spring-cloud-gateway-server-webflux | 4.3.1 | GHSA-q2cj-h8fw-q4cc |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Cloud Gateway | 4.3.x – before 4.3.14.2.x – before 4.2.54.1.x, 4.0.x – before 4.1.113.1.x – before 3.1.11 |
Weakness: CWE-917, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H