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CVE-2018-17194

25
FAUCET Score

CVE-2018-17194 affects Apache NiFi versions prior to 1.8.0, where a crafted DELETE request with a non-zero Content-Length could cause cluster nodes to timeout. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that can lead to high availability impact. There is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE. Users are advised to upgrade to Apache NiFi 1.8.0 or later to mitigate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, <= 1.7.1CPE matchmatch criteria
cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.97%
Probability of exploitation in next 30 days
EPSS Percentile
85.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0297 is in the 75th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.nifi:nifi-framework-clusterFixed in: 1.8.0

Vendor Advisories (1)

mavenGHSA-43fp-vwwg-qgv6high

Apache NiFi Improper Input Validation vulnerability

Dec 20, 2018

References

nifi.apache.org / security.html
Vendor Advisory