Property Modification Vulnerability in Spring Cloud Gateway Server by Spring
CVE-2025-41243

10CRITICAL

Key Information:

Vendor

Spring

Status
Cloud Gateway
Vendor
CVE Published:
16 September 2025

What is CVE-2025-41243?

The Spring Cloud Gateway Server Webflux configuration may be exploited to modify Spring Environment properties when certain conditions are met. This vulnerability occurs specifically when the application utilizes Spring Boot actuator as a dependency, and the actuator's web endpoint is both enabled and unsecured. Attackers may take advantage of this flaw if they gain access to actuator endpoints, thereby posing significant security risks to applications running on this framework.

Affected Version(s)

Cloud Gateway 4.3.x < 4.3.1

Cloud Gateway 4.2.x < 4.2.5

Cloud Gateway 4.1.x, 4.0.x < 4.1.11

References

https://spring.io/security/cve-2025-41243

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-41243 : Property Modification Vulnerability in Spring Cloud Gateway Server by Spring