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Message-ID: <e13bc4ef-f38e-bb7f-ad14-83052412ab34@apache.org>
Date: Mon, 16 Feb 2026 17:00:02 +0000
From: David Handermann <exceptionfactory@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-25903: Apache NiFi: Missing Authorization of Restricted
Permissions for Component Updates
Severity:
Affected versions:
- Apache NiFi (org.apache.nifi:nifi-web-api) 1.1.0 before 2.8.0
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.
This issue is being tracked as NIFI-15567
Credit:
David Handermann (finder)
References:
https://nifi.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-25903
https://issues.apache.org/jira/browse/NIFI-15567
Timeline:
2026-02-06: reported
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