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In Spring Boot versions 3.0.0 - 3.0.6, 2.7.0 - 2.7.11, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, there is potential for a denial-of-service (DoS) attack if Spring MVC is used together with a reverse proxy cache.
Specifically, an application is vulnerable if all of the conditions are true:
Your application is NOT vulnerable if any of the following are true:
WebMvcAutoConfigurationis explicitly excluded, if Spring MVC is not on the classpath, or if
spring.main.web-application-typeis set to a value other than
3.0.0 to 3.0.6 2.7.0 to 2.7.11 2.6.0 to 2.6.14 2.5.0 to 2.5.14
Older, unsupported versions are also affected
Users of affected versions should apply the following mitigations:
Users of older, unsupported versions should upgrade to 3.0.7+ or 2.7.12+.
Workarounds: configure the reverse proxy not to cache 404 responses and/or not to cache responses to requests to the root (
/) of the application.
Martin van Kervel Smedshammer
The VMware Security Response team provides a single point of contact for the reporting of security vulnerabilities in VMware Tanzu products and coordinates the process of investigating any reported vulnerabilities.
To report a security vulnerability in a VMware service or product please refer to the VMware Security Response Policy.