CVE-2026-44914
HighCVSS 7.2Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
Apache NiFi versions 1.12.0 through 2.9.0 are missing authorization when replacing Process Groups that include components marked as Restricted. This lack of authorization allows users with general write access to add components with restricted access.
Risk Assessment
Organizations may be exposed to unauthorized addition of restricted access components, potentially leading to data and system security breaches.
Recommendation
It is recommended to upgrade to Apache NiFi version 2.9.0, which removes the issue with authorization for Restricted components.
Original NVD description (English source)
Apache NiFi 1.12.0 through 2.9.0 are missing authorization when replacing Process Groups that include extension components with specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required, but framework authorization did not check restricted status when handling requests to replace Process Groups. The missing authorization permits a user with general write access to add components with Restricted status. Apache NiFi installations that do not implement specific authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.9.0 is the recommended mitigation, which removes the implementation of Restricted status authorization from the framework.