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CVE-2023-40037

MediumPublished

Apache NiFi: Incomplete Validation of JDBC and JNDI Connection URLs

Published: Aug 18, 2023
Updated: Feb 13, 2025
Assigning CNA: apache
Evidence observed: Aug 8, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

2.1%

Low · next 30 days

Percentile: 80.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Apache NiFi 1.21.0 through 1.23.0 support JDBC and JNDI JMS access in several Processors and Controller Services with connection URL validation that does not provide sufficient protection against crafted inputs. An authenticated and authorized user can bypass connection URL validation using custom input formatting. The resolution enhances connection URL validation and introduces validation for additional related properties. Upgrading to Apache NiFi 1.23.1 is the recommended mitigation.

Sources

CVE-2023-40037PoC
CVE-2023-40037: Incomplete Validation of JDBC and JNDI Connection URLs in Apache NiFi

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