Expression Language Injection Affecting org.springframework.cloud:spring-cloud-gateway-server package, versions [,4.2.6)[4.3.0,4.3.2)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Oct 2025
- disclosed15 Oct 2025
- creditpsytester
Introduced: 15 Oct 2025
NewCVE-2025-41253 (opens in a new tab)How to fix?
Upgrade org.springframework.cloud:spring-cloud-gateway-server to version 4.2.6, 4.3.2 or higher.
Overview
Affected versions of this package are vulnerable to Expression Language Injection in route definitions. An attacker with permission to define routes can expose the server's file structure or other sensitive environment variables by crafting a SpEL expression to access sensitive system beans such as @systemProperties and @systemEnvironment
Note: Additional fixed versions might be available for commercial users of Spring Enterprise.
Workaround
Users who are not able to upgrade to the fixed version are advised to remove the gateway from the management.endpoints.web.exposure.include property or secure the actuator endpoints.