CVE-2026-44914

HIGH
MEDIUM Priority: 0.05 BB Relevance: 60/100
Published: 2026-06-22 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: P
AT: Present
VC: High
VI: High
VA: High

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 Classification (1)

Affected Software (1)

VendorProductVersion
apache nifi 1.12.0 – 2.10.0

References & Advisories (2)

Bug Bounty Relevance

60 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.66%
Raw Score 0.006600
Percentile 51.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00660
2026-10-28
0.00660

Intelligence Sources

nvd ref →