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CVE-2017-12632

24
FAUCET Score

CVE-2017-12632 describes a vulnerability in Apache NiFi versions prior to 1.5.0 where a malicious host header in an incoming HTTP request could force NiFi to load resources from an external server. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and could lead to high integrity impact, allowing an unauthenticated attacker to manipulate resource loading. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE. Users are advised to upgrade to NiFi 1.5.0 or later to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.0CPE 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:H/A:N

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

Exploit Intelligence

EPSS Score
2.85%
Probability of exploitation in next 30 days
EPSS Percentile
85.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0285 is in the 74th percentile among its peer group of 51,506 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:nifiFixed in: 1.5.0

Vendor Advisories (1)

mavenGHSA-w4x6-j349-9r57high

Apache NiFi host header poisoning issue

May 14, 2022

References

nifi.apache.org / security.html
Vendor Advisory