CVE-2018-17194: Improper Input Validation in Apache NiFi

org.apache.nifi:nifi-framework-cluster Updated 02 Oct 2025

Summary

20/12/2018

Disclosed on

CVE-2018-17194

CVE

Yes i

Fix available

High

Severity

7.5

CVSS Score

CVE-2018-17194: Apache NiFi Improper Input Validation vulnerability. Affects org.apache.nifi:nifi-framework-cluster versions >= 1.0.0, < 1.8.0. Fixed in 1.8.0. How to fix ↓

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Background

Apache NiFi is an open-source data integration tool that enables the automation of data flow between different systems. It provides a web-based interface for designing, managing, and monitoring data flows. The vulnerability identified as CVE-2018-17194 affects versions of Apache NiFi prior to 1.8.0. This vulnerability arises from improper input validation when handling DELETE requests in a cluster environment.

Vulnerability Detail

The vulnerability occurs when a DELETE request with a non-zero Content-Length header is replicated to other nodes in the cluster. While the body of the DELETE request is ignored, the receiving nodes still wait for the body, leading to a timeout. This can result in denial of service (DoS) as the cluster nodes become unresponsive. The severity of this vulnerability is rated as HIGH with a CVSS score of 7.5.

How To Fix

Minimum fixed version

1.8.0

This is the first release that contains the fix.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in Apache NiFi, identified as CVE-2018-17194, can lead to denial of service (DoS) in a cluster environment. Users are advised to upgrade to Apache NiFi 1.8.0 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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