CVE-2020-9486

Name: CVE-2020-9486
Creator: NVD / NIST
Published: 2020-10-01T20:15:14.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.41%

Last modified Jun 17, 2026

CVE-2020-9486 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Apache NiFi 1.10.0 to 1.11.4, the NiFi stateless execution engine produced log output which included sensitive property values. When a flow was triggered, the flow definition configuration JSON was printed, potentially containing sensitive values in plaintext.. EPSS estimates a 3.41% chance of exploitation in the next 30 days.

Description

In Apache NiFi 1.10.0 to 1.11.4, the NiFi stateless execution engine produced log output which included sensitive property values. When a flow was triggered, the flow definition configuration JSON was printed, potentially containing sensitive values in plaintext.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

3.41%

87.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-532

Affected Software

Vendor	Product	Versions
Apache	Nifi	>= 1.0.0, <= 1.11.4

References

https://nifi.apache.org/security#CVE-2020-9486Vendor Advisory
https://nifi.apache.org/security#CVE-2020-9486Vendor Advisory

Timeline

Published: Oct 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9486?

How severe is CVE-2020-9486?

CVE-2020-9486 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.41% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9486?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9486?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST