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CVE-2025-41243— Spring Expression Language property modification using Spring Cloud Gateway Server WebFlux

Quick assessment

Affected
Spring Cloud Gateway
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Spring Cloud Gateway是Spring开源的一款API网关框架。 Spring Cloud Gateway存在安全漏洞，该漏洞源于Spring环境属性可能被修改。

CVSS 10.0 · Critical EPSS 3.55% · P89

Public Exploits 1

Nuclei · 1 CVE-2025-41243.yaml [template]
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I. Basic Information for CVE-2025-41243

Vulnerability Information
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Vulnerability Title
Spring Expression Language property modification using Spring Cloud Gateway Server WebFlux
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
表达式语言语句中使用的特殊元素转义处理不恰当(表达式语言注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Spring Cloud Gateway 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spring Cloud Gateway是Spring开源的一款API网关框架。 Spring Cloud Gateway存在安全漏洞，该漏洞源于Spring环境属性可能被修改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Spring Cloud Gateway 4.3.x ~ 4.3.1 -

II. Public POCs for CVE-2025-41243

# POC Description Source Link Shenlong Link
1 Spring Cloud Gateway Server Webflux contains a vulnerability caused by unsecured and exposed actuator endpoints allowing modification of Spring Environment properties, letting attackers modify configuration, exploit requires unsecured actuator endpoints exposure. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-41243.yaml POC Details
2 Spring Cloud Gateway SpEL RCE Vulnerability Environment https://github.com/SFN233/CVE-2025-41243-Vulnerability-Lab POC Details
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III. Intelligence Information for CVE-2025-41243

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Vendor Advisories for CVE-2025-41243 (1)

IV. Related Vulnerabilities

Same vendor: Spring
Same weakness: CWE-917

V. Comments for CVE-2025-41243

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