Apache NiFi, a robust data integration tool, has recently been identified with several security vulnerabilities that could potentially compromise system integrity. These issues span multiple versions and components, necessitating immediate attention from users and administrators.
SQL Injection Risk in CaptureChangeMySQL Processor
One significant vulnerability, designated as CVE-2026-44913, affects the CaptureChangeMySQL Processor in Apache NiFi versions 1.2.0 through 2.9.0. This flaw arises from improper escaping of database table names, allowing attackers to inject SQL commands through specially crafted table names. Although manual quoting introduced in version 1.8.0 reduced some risks, it did not fully address all potential injection methods. Systems not utilizing the CaptureChangeMySQL Processor remain unaffected. To mitigate this risk, upgrading to Apache NiFi 2.10.0 is recommended, as it includes enhanced identifier escaping mechanisms. ([seclists.org](https://seclists.org/oss-sec/2026/q2/989?utm_source=openai))
Authorization Bypass in Process Group Replacement
Another critical issue, CVE-2026-44914, impacts Apache NiFi versions 1.12.0 through 2.9.0. This vulnerability stems from missing authorization checks when replacing Process Groups containing components with specific Required Permissions marked by the Restricted annotation. Consequently, users with general write access could add components requiring restricted permissions without proper authorization. Systems that do not implement specific authorization for Restricted components are not susceptible to this flaw. Upgrading to Apache NiFi 2.9.0 is advised to resolve this issue. ([stack.watch](https://stack.watch/vuln/CVE-2026-44914/?utm_source=openai))
Code Injection via Database URL Configuration
Additionally, CVE-2023-34468 affects Apache NiFi versions 0.0.2 through 1.21.0. This vulnerability allows authenticated users to configure a Database URL with the H2 driver, enabling custom code execution. The issue has been addressed in version 1.22.0 by validating Database URLs and rejecting H2 JDBC locations. Users are encouraged to upgrade to this version to mitigate the risk. ([advisories.gitlab.com](https://advisories.gitlab.com/maven/org.apache.nifi/nifi-hikari-dbcp-service/CVE-2023-34468/?utm_source=openai))
These vulnerabilities underscore the importance of regular updates and vigilant security practices. Organizations relying on Apache NiFi should promptly assess their systems, apply the necessary patches, and review configurations to ensure they are not exposed to these risks. Staying informed about such vulnerabilities is crucial in maintaining the security and reliability of data integration processes.
