7.5

CVE-2018-17194: apache software foundation apache nifi Improper Input Validation

CVSS: 7.5v3.0HighModified
AliasesGHSA-43fp-vwwg-qgv6
Published 19-12-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-17194 is a high (CVSS 7.5) Improper Input Validation vulnerability in apache software foundation apache nifi. EPSS estimates a 2.97% chance of exploitation in the next 30 days, higher than 87% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.97%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-12-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.97%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.97% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.97%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • nifi≥ 1.0.0, ≤ 1.7.1
Apache software foundation1 product
Org.apache.nifi1 product
  • nifi-framework-cluster≥ 1.0.0, < 1.8.0

3 vendors · 3 products

References

6 links