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Apache Ranger Hostname Verification Bypass Vulnerability in NiFiRegistryClient and NiFiClient

Vulnerability

A hostname verification bypass vulnerability has been identified in Apache Ranger, specifically in the NiFiRegistryClient and NiFiClient components. This issue affects Apache Ranger versions through 2.7.0. The vulnerability allows for improper validation of hostnames, which could potentially be exploited in certain scenarios.

Impact

Exploitation of this vulnerability could lead to hostname verification bypass, allowing for man-in-the-middle attacks or other forms of interception.

Remediation

Users are advised to upgrade to Apache Ranger version 2.8.0 or later, which addresses this vulnerability.

Added: Mar 3, 2026, 11:17 AM
Updated: Mar 3, 2026, 3:25 PM

Vulnerability Rating

Custom Algorithm
spread
2.6
impact
1.3
exploitability
6.6
remediation
7.7
relevance
3.4
threat
0.0
urgency
2.9
incentive
4.2

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.