CVE-2026-44914
highpriority · track · 29OT risk · elevatedEPSS 0.007 · 51 %ileDEEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.8–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2029Apache Nifi: Mehrere SchwachstellenDeutsch2026-06-21csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache Nifi ausnutzen, um Dateien und Daten zu manipulieren, um einen SQL-Injection Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
- GHSA-r2g5-993q-664gApache NiFi: Missing authorization when replacing Process Groups with restricted components2026-06-22ghsa · osvUS
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.
- BIT-nifi-2026-44914Apache NiFi: Missing Authorization of Restricted Permissions when Replacing Flow Contents2026-06-24vendor · osvUS
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.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/06/20/6cnnvd
- https://lists.apache.org/thread/ydr34t03xd1n0t9oogpzogjrd5y93838cnnvd
- https://lists.apache.org/thread/ydr34t03xd1n0t9oogpzogjrd5y93838enisa_euvd
- http://www.openwall.com/lists/oss-security/2026/06/20/6Mailing ListThird Party Advisorynvd
- https://lists.apache.org/thread/ydr34t03xd1n0t9oogpzogjrd5y93838Mailing ListVendor Advisorynvd
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