CVE-2018-17194

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Length was forwarded. On a DELETE request, the body was ignored, but if the initial request had a Content-Length value other than 0, the receiving nodes would wait for the body and eventually timeout. Mitigation: The fix to check DELETE requests and overwrite non-zero Content-Length header values was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
Apache Software Foundation	Apache NiFi	Apache NiFi 1.0.0 - 1.7.1

References

https://nifi.apache.org/security.html#CVE-2018-17194Vendor Advisory
https://nifi.apache.org/security.html#CVE-2018-17194Vendor Advisory

Timeline

Published: Dec 19, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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