CVE-2023-34053: Spring Framework vulnerable to denial of service

November 28, 2023

In Spring Framework versions 6.0.0 - 6.0.13, 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
io.micrometer:micrometer-core is on the classpath
an ObservationRegistry is configured in the application to record observations

Typically, Spring Boot applications need the org.springframework.boot:spring-boot-actuator dependency to meet all conditions.

References

github.com/advisories/GHSA-v94h-hvhg-mf9h
github.com/spring-projects/spring-framework/compare/v6.0.13...v6.0.14
nvd.nist.gov/vuln/detail/CVE-2023-34053
spring.io/security/cve-2023-34053

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