CVE-2026-44914 json
Apache NiFi: Missing Authorization of Restricted Permissions when Replacing Flow Contents
published 2026-06-22 4 mo ago modified 2026-10-25 14 d ago also BIT-nifi-2026-44914 , EUVD-2026-38219 , GHSA-r2g5-993q-664g
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.apache.nifi:nifi-web-api 2.9.0
- bitnami nifi 2.10.0
- apache nifi 2.10.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.5 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/S:P/AU:Y/R:U/V:C/RE:L/U:Clear |
| CNA | 4.0 | 7.5 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:U/V:C/RE:L/U:Clear |
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.nifi:nifi-web-api | >=1.12.0, <2.9.0 |
2.9.0 |
| bitnami | nifi | >=1.12.0, <2.10.0 |
2.10.0 |
Affected products
- Apache Software Foundation Apache NiFi
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/apache/nifi/commit/8fb3240441282825b6ef131b856c67b2476aeb28
web
-
lists.apache.org
/thread/ydr34t03xd1n0t9oogpzogjrd5y93838
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/06/20/6
web, mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-44914
advisory, web
-
github.com
/apache/nifi
package
Sources
- CVE List CVE-2026-44914
- GitHub Advisory GHSA-r2g5-993q-664g
- NVD CVE-2026-44914
- OSV BIT-nifi-2026-44914
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