CVE-2022-22979: Denial of Service in Spring Cloud Function

org.springframework.cloud:spring-cloud-function-parent Updated 02 Oct 2025

Summary

22/06/2022

Disclosed on

CVE-2022-22979

CVE

Yes i

Fix available

High

Severity

7.5

CVSS Score

CVE-2022-22979: Denial of Service in Spring Cloud Function. Affects org.springframework.cloud:spring-cloud-function-parent versions < 3.2.6. Fixed in 3.2.6. How to fix ↓

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Background

Spring Cloud Function is a framework that allows developers to write serverless functions using Spring Boot. It provides a catalog of functions that can be invoked by name or type. The Function Catalog component of the framework is responsible for caching and lookup of these functions. However, prior to version 3.2.6, there is a caching issue in the Function Catalog that can be exploited by a user interacting directly with the framework's lookup functionality.

Vulnerability Detail

The vulnerability in Spring Cloud Function allows an attacker to cause a denial-of-service (DoS) condition. By exploiting the caching issue in the Function Catalog, an attacker can overload the system by repeatedly invoking the lookup functionality. This can lead to resource exhaustion and impact the availability of the application. The vulnerability has a CVSS score of 7.5, indicating a high severity.

How To Fix

Latest published version: 5.1.0-RC1 as of 22 Oct 2026

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

3.2.6

This is the first release that contains the fix.

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Workaround

There is no known workaround for this vulnerability. It is necessary to upgrade to the fixed version of Spring Cloud Function to mitigate the risk.

Conclusion

In conclusion, the vulnerability in Spring Cloud Function allows an attacker to cause a denial-of-service condition by exploiting a caching issue in the Function Catalog. To mitigate the risk, it is crucial to upgrade to the fixed version of Spring Cloud Function (3.2.6 or later). For further support on vulnerability remediation, please contact DevNack.com.

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