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CVE-2020-1942

Insertion of Sensitive Information into Log File in Apache NiFi

7.5 HighFix available

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

3.12%Up 1.9 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
CVE-2020-1942
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-532
Updated
2026-11-02
CVE List No score

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
CVE-2020-1942
Updated
2026-11-02
EUVDEUVD-2022-0504 No score

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
EUVD-2022-0504
Updated
2026-11-03
GitHub AdvisoriesGHSA-7q8g-gpfp-v8gx 7.5

Insertion of Sensitive Information into Log File in Apache NiFi

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
GHSA-7q8g-gpfp-v8gx
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-200, CWE-532
Updated
2026-11-02
OSV 7.5

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
CVE-2020-1942
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVGHSA-7q8g-gpfp-v8gx 7.5

Insertion of Sensitive Information into Log File in Apache NiFi

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
GHSA-7q8g-gpfp-v8gx
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-200, CWE-532
Updated
2026-11-02
OSVBIT-nifi-2020-1942 No score

In Apache NiFi 0.0.1 to 1.11.0, the flow fingerprint factory generated flow fingerprints which included sensitive property descriptor values. In the event a node attempted to join a cluster and the cluster flow was not inheritable, the flow fingerprint of both the cluster and local flow was printed, potentially containing sensitive values in plaintext.

Record
BIT-nifi-2020-1942
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.nifi:nifi-framework-core
Maven
 0.0.1 to 1.11.0
1.12.0-RC1
org.apache.nifi:nifi-security-utils
Maven
 0.0.1 to 1.11.0
1.12.0-RC1
nifi
Bitnami
 0.0.1 to 1.11.0 None known
org.apache.nifi:nifi-framework-core
Maven
 0.0.1 up to 1.12.0-RC1, plus listed versions
0.0.1-incubating0.0.2-incubating0.1.0-incubating0.2.0-incubating0.2.1
Show 35 moreShow less
0.3.00.4.00.4.10.5.00.5.10.6.00.6.10.7.00.7.10.7.20.7.30.7.41.0.01.0.0-BETA1.0.11.1.01.1.11.1.21.10.01.11.01.11.11.11.21.11.31.11.41.2.01.3.01.4.01.5.01.6.01.7.01.7.11.8.01.9.01.9.11.9.2
1.12.0-RC1
org.apache.nifi:nifi-security-utils
Maven
 0.0.1 up to 1.12.0-RC1, plus listed versions
0.0.1-incubating0.0.2-incubating0.1.0-incubating0.2.0-incubating0.2.1
Show 35 moreShow less
0.3.00.4.00.4.10.5.00.5.10.6.00.6.10.7.00.7.10.7.20.7.30.7.41.0.01.0.0-BETA1.0.11.1.01.1.11.1.21.10.01.11.01.11.11.11.21.11.31.11.41.2.01.3.01.4.01.5.01.6.01.7.01.7.11.8.01.9.01.9.11.9.2
1.12.0-RC1

History

History
RecordedChangedSources
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-1942 is a high vulnerability (CVSS 7.5) in Apache Nifi, published February 11, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.12%, the 87th percentile. Fixed in org.apache.nifi:nifi-framework-core 1.12.0-RC1.

References

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