Critical severity · published Sep 16, 2025
CVE-2025-41243
Spring Expression Language property modification using Spring Cloud Gateway Server WebFlux
10.0
CVSS
3.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CG
Cloud Gateway · Spring
4.3.x before 4.3.1; 4.2.x before 4.2.5; 4.1.x, 4.0.x before 4.1.11; 3.1.x before 3.1.11 · source: vendor