Critical

Spring Expression language property modification using Spring Cloud Gateway Server WebFlux

  • Disclosed: 16.09.2025
  • Updated: 11.10.2026 12:22

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 software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.springframework.cloud:spring-cloud-gateway-server-webflux >= 3.1.0, <= 3.1.10, >= 4.0.0, <= 4.1.10, >= 4.2.0, < 4.2.5, >= 4.3.0, < 4.3.1 4.2.5, 4.3.1

References

CVSS score 10/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Platform
Java / Kotlin (Maven)
Package
org.springframework.cloud:spring-cloud-gateway-server-webflux
Disclosed
16.09.2025
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-q2cj-h8fw-q4cc - CC BY 4.0

Vulnerability history: org.springframework.cloud:spring-cloud-gateway-server-webflux

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Free to subscribe. Unsubscribe with one click in any email.