How severe is CVE-2023-40037?

CVE-2023-40037 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2023-40037?

CVE-2023-40037 affects the following packages: org.apache.nifi:nifi-dbcp-base (Maven), org.apache.nifi:nifi-jms-processors (Maven), org.apache.nifi:nifi-dbcp-service-api (Maven), org.apache.nifi:nifi-dbcp-service-bundle (Maven). Ecosystems affected: Maven.

How do I fix CVE-2023-40037?

Update org.apache.nifi:nifi-dbcp-base to 1.23.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-40037 is resolved across your whole dependency graph.

How do I detect CVE-2023-40037 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.nifi:nifi-dbcp-base, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-40037 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2023-40037 actively exploited in the wild?

No public exploit code has been indexed for CVE-2023-40037 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2023-40037?

CVE-2023-40037 has an EPSS (Exploit Prediction Scoring System) score of 2.1%, placing it in the 82th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2023-40037?

CVE-2023-40037 is classified as CWE-184 (CWE-184), CWE-697 (CWE-697). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2023-40037 published, and has it been updated?

CVE-2023-40037 was published on August 18, 2023 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2023-40037 — nifi-dbcp-base

MEDIUMFix: apache/nifi#7586

CVE-2023-40037 is a medium-severity (CVSS 6.5) CWE-184 vulnerability in org.apache.nifi:nifi-dbcp-base. A fix is available for org.apache.nifi:nifi-dbcp-base — see the affected versions and patch details below.

Apache NiFi: Incomplete Validation of JDBC and JNDI Connection URLs

Also known asBIT-nifi-2023-40037GHSA-23qf-3jf9-h3q9

Published

Aug 18, 2023

Updated

Oct 28, 2026

Affected

4 pkgs

Patched

4 / 4

Exploits

None indexed

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-40037.

EPSS Exploitation Probability

via FIRST.org ↗

2.1%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs82th percentile — riskier than 82% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

4 pkgs affected

☕org.apache.nifi:nifi-dbcp-base☕org.apache.nifi:nifi-jms-processors☕org.apache.nifi:nifi-dbcp-service-api☕org.apache.nifi:nifi-dbcp-service-bundle

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.nifi:nifi-dbcp-base`	≥ 1.21.0&&< 1.23.1	1.23.1`org.apache.nifi:nifi-dbcp-base:1.23.1`
☕Maven	`org.apache.nifi:nifi-jms-processors`	≥ 1.21.0&&< 1.23.1	1.23.1`org.apache.nifi:nifi-jms-processors:1.23.1`
☕Maven	`org.apache.nifi:nifi-dbcp-service-api`	≥ 1.21.0&&< 1.23.1	1.23.1`org.apache.nifi:nifi-dbcp-service-api:1.23.1`
☕Maven	`org.apache.nifi:nifi-dbcp-service-bundle`	≥ 1.21.0&&< 1.23.1	1.23.1`org.apache.nifi:nifi-dbcp-service-bundle:1.23.1`

Affected Products

1 product · 1 configurations

Application

nifiapache

≥ 1.21.0 && < 1.23.1

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.nifi:nifi-dbcp-base, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.nifi:nifi-dbcp-base to 1.23.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-40037 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2023-40037 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Raw vector

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

CWE Classification

CWE-184CWE-184 CWE-697CWE-697

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Aug 18, 2023

Last updated

Oct 28, 2026

Identifiers

CVE-2023-40037

GHSA-23qf-3jf9-h3q9

BIT-nifi-2023-40037

References

Advisorygithub.com · CVE 2023 40037.json Advisorylists.apache.org · bqbjlrs2p5ghh8sbk5nsxb8xpf9l687q Advisorynifi.apache.org · security Advisorynvd.nist.gov · CVE 2023 40037 Webopenwall.com Webgithub.com Webgithub.com · 064550aacc189f39d7ddd2c0446068adf250f1bf Webissues.apache.org · NIFI 11920 Packagegithub.com · nifi

Related vulnerabilities

Also affects nifi-dbcp-base

This CVE is medium severity; 1 of 1 other CVE affecting nifi-dbcp-base is rated as high or higher (top: high).

CVE-2023-34468

Also affects nifi-jms-processors

This CVE is medium severity; 2 of 2 other CVEs affecting nifi-jms-processors are rated as high or higher (top: high).

CVE-2023-36542CVE-2023-34212

Same weakness: CWE-184

This CVE is medium severity; 5 of 5 other CVEs with CWE-184 are rated as high or higher (top: critical).

CVE-2026-61438CVE-2026-114615GHSA-wf6j-7hvr-gr93CVE-2026-84316CVE-2026-106445Browse all CWE-184

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 28, 2026

CVE-2023-40037 — nifi-dbcp-base

Exploitation Status

No confirmed exploitation observed yet

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2023-40037 in your dependencies?