CVE-2023-34212

MEDIUM

Apache NiFi 1.8.0-1.21.0 - Authenticated Deserialization of Untrusted Data via JNDI URL Configuration

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-34212. PoCs published by mbadanoiu.

AI-analyzed exploit summary This repository provides a writeup and references for CVE-2023-34212, a Java deserialization vulnerability in Apache NiFi via JNDI components. It includes details on requirements, vendor disclosure, and additional resources but lacks direct exploit code.

Description

The JndiJmsConnectionFactoryProvider Controller Service, along with the ConsumeJMS and PublishJMS Processors, in Apache NiFi 1.8.0 through 1.21.0 allow an authenticated and authorized user to configure URL and library properties that enable deserialization of untrusted data from a remote location. The resolution validates the JNDI URL and restricts locations to a set of allowed schemes. You are recommended to upgrade to version 1.22.0 or later which fixes this issue.

Exploits (1)

nomisec WRITEUP 3 stars
by mbadanoiu · poc
https://github.com/mbadanoiu/CVE-2023-34212

This repository provides a writeup and references for CVE-2023-34212, a Java deserialization vulnerability in Apache NiFi via JNDI components. It includes details on requirements, vendor disclosure, and additional resources but lacks direct exploit code.

Classification
Writeup 90%
Attack Type
Deserialization
Complexity
Moderate
Reliability
Theoretical
Target: Apache NiFi 1.8.0 through 1.21.0
Auth required
Prerequisites: Valid user credentials · Access to configure JNDI properties
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/06/12/2
Release Notes, Vendor Advisory release-notes
https://nifi.apache.org/security.html#CVE-2023-34212
Mailing List, Vendor Advisory vendor-advisory
https://lists.apache.org/thread/w5rm46fxmvxy216tglf0dv83wo6gnzr5

Scores

CVSS v3 6.5
EPSS 0.0235
EPSS Percentile 81.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-502
Status published
Products (2)
apache/nifi 1.8.0 - 1.21.0
org.apache.nifi/nifi-jms-processors 1.8.0 - 1.22.0Maven
Published Jun 12, 2023
Tracked Since Feb 18, 2026