CVE-2026-44914 Apache NiFi: Missing Authorization of Restricted Permissions when Replacing Flow Contents
Attackers with write access can bypass restricted permission checks to add privileged components in Apache NiFi, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44914?
CVE-2026-44914 is a high-severity missing authorization vulnerability in Apache Nifi, published on 22 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-44914?
3 open source packages ship an affected version, including org.apache.nifi:nifi-web-api and nifi. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.nifi:nifi-web-api Maven | From 1.12.0 | 2.9.0 |
org.apache.nifi:nifi-web-api Maven | From 1.12.0 | 2.9.0 |
nifi Bitnami | From 1.12.0 | 2.10.0 |
Products include Apache Nifi.
How do I fix CVE-2026-44914?
Upgrade org.apache.nifi:nifi-web-api to 2.9.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-44914 being exploited?
There is no known exploitation of CVE-2026-44914 in the wild and no public exploit code.
Other vulnerabilities in Apache Nifi
- CVE-2018-1309 Improper Restriction of XML External Entity Reference in Apache NiFi
- CVE-2017-15697 Apache NiFi XSS issue in context path handling
- CVE-2017-5636 Injection in Apache NiFi
- CVE-2026-68981 Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests
- CVE-2023-36542 Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources
Sources
Also known as BIT-nifi-2026-44914, CLEANSTART-2026-BA63777, CLEANSTART-2026-JZ19547, GHSA-r2g5-993q-664g, MINI-cj5c-fvj2-m3c9.