CVE-2026-25903: apache software foundation apache nifi Missing Authorization

Vulnerability summary

CVE-2026-25903 is a high (CVSS 8.7) Missing Authorization vulnerability in apache software foundation apache nifi. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 52.1% of scored vulnerabilities.

Timeline

1. 17-02-2026
   PublishedVulnerability first disclosed.
2. 17-02-2026
   Last modifiedVulnerability information updated.

Description

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

• CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.