CVE-2025-41243 — Vulnerability in...

CRITICAL

Spring Expression language property modification using Spring Cloud Gateway Server WebFlux

Published September 16, 2025Updated September 16, 2025Source: osv

Summary

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.

Advisory Timeline

First published September 16, 2025 (391 days ago).
Last revised September 16, 2025 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven

Update org.springframework.cloud:spring-cloud-gateway-server-webflux to 4.2.5 or later

<!-- Update pom.xml dependency version to 4.2.5 for org.springframework.cloud:spring-cloud-gateway-server-webflux -->

Maven

Update org.springframework.cloud:spring-cloud-gateway-server-webflux to 4.3.1 or later

<!-- Update pom.xml dependency version to 4.3.1 for org.springframework.cloud:spring-cloud-gateway-server-webflux -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: maven (1).

Package	Ecosystem	Affected	Fixed In
org.springframework.cloud:spring-cloud-gateway-server-webflux	maven	All versions	Range-based data available
org.springframework.cloud:spring-cloud-gateway-server-webflux	maven	All versions	4.2.5
org.springframework.cloud:spring-cloud-gateway-server-webflux	maven	All versions	Range-based data available
org.springframework.cloud:spring-cloud-gateway-server-webflux	maven	4.3.0	4.3.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-94
Code InjectionMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 10.0 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

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

References

Frequently Asked Questions

What is CVE-2025-41243?: Spring Expression language property modification using Spring Cloud Gateway Server WebFlux This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 10.0/10).
How do I check if my project is affected by CVE-2025-41243?: CVE-2025-41243 affects org.springframework.cloud:spring-cloud-gateway-server-webflux. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-41243 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

10.0

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-q2cj-h8fw-q4cc

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