CVE-2023-40037

Apache NiFi: Incomplete Validation of JDBC and JNDI Connection URLs

MEDIUM
6.5
CVSS Score
Published: August 18, 2023 at 09:54 PM UTC
Updated: June 17, 2026 at 06:15 AM UTC
1 product affected across 1 vendorNifi

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.21.0 ≤ v ≤ 1.23.01.21.0
Affected range stops below 1.23.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-184CWE-697

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