title: Spring Boot server Web Observations DoS Vulnerability
description: In Spring Boot versions 2.7.0 - 2.7.17, 3.0.0-3.0.12 and 3.1.0-3.1.5, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.
Specifically, an application is vulnerable when all of the following are true:
*  the application uses Spring MVC or Spring WebFlux
*  org.springframework.boot:spring-boot-actuator is on the classpath
affected:
{
defaultStatus: unaffected
platforms: [Windows, MacOS, Linux]
product: Spring Boot
vendor: Spring
versions:
lessThan: 2.7.18, status: affected, version: 2.7.0, versionType: 2.7.18
lessThan: 3.0.13, status: affected, version: 3.0.0, versionType: 3.0.13
lessThan: 3.1.6, status: affected, version: 3.1.0, versionType: 3.1.6
status: affected, version: older unsupported versions
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL