CVE-2023-36542

Name: CVE-2023-36542
Creator: NVD / NIST
Published: 2023-07-29T08:15:48.833+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.63%

Last modified Jun 17, 2026

CVE-2023-36542 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Apache NiFi 0.0.2 through 1.22.0 include Processors and Controller Services that support HTTP URL references for retrieving drivers, which allows an authenticated and authorized user to configure a location that enables custom code execution. The resolution introduces a new Required Permission for referencing remote resources, restricting configuration of these components to privileged users. EPSS estimates a 1.63% chance of exploitation in the next 30 days.

Description

Apache NiFi 0.0.2 through 1.22.0 include Processors and Controller Services that support HTTP URL references for retrieving drivers, which allows an authenticated and authorized user to configure a location that enables custom code execution. The resolution introduces a new Required Permission for referencing remote resources, restricting configuration of these components to privileged users. The permission prevents unprivileged users from configuring Processors and Controller Services annotated with the new Reference Remote Resources restriction. Upgrading to Apache NiFi 1.23.0 is the recommended mitigation.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.63%

73.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Apache	Nifi	>= 0.0.2, <= 1.22.0

References

http://seclists.org/fulldisclosure/2023/Jul/43Not Applicable
http://www.openwall.com/lists/oss-security/2023/07/29/1Mailing List, Third Party Advisory
https://lists.apache.org/thread/swnly3dzhhq9zo3rofc8djq77stkhbofIssue Tracking, Mailing List, Vendor Advisory
https://nifi.apache.org/security.html#CVE-2023-36542Vendor Advisory
http://seclists.org/fulldisclosure/2023/Jul/43Not Applicable
http://www.openwall.com/lists/oss-security/2023/07/29/1Mailing List, Third Party Advisory
https://lists.apache.org/thread/swnly3dzhhq9zo3rofc8djq77stkhbofIssue Tracking, Mailing List, Vendor Advisory
https://nifi.apache.org/security.html#CVE-2023-36542Vendor Advisory

Timeline

Published: Jul 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-36542?

How severe is CVE-2023-36542?

CVE-2023-36542 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.

How do I fix CVE-2023-36542?

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-2023-36542?

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

Scan your code now

Source: NVD / NIST