CVE-2026-28672

Analyzed Analyzed - Analysis Complete

Command Injection in Apache Ranger

Publication date: 2026-08-10

Last updated on: 2026-10-23

Assigner: Apache Software Foundation

Description

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Apache Ranger. This issue affects Apache Ranger: from 0.6 through 2.8.

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Meta Information

Published

2026-08-10

Last Modified

2026-10-23

Generated

2026-11-08

AI Q&A

2026-08-10

EPSS Evaluated

2026-11-07

NVD

CVE-2026-28672

EUVD

EUVD-2026-55254

Affected Vendors & Products

Vendor	Product	Version / Range
apache	ranger	From 0.6.0 (inc) to 2.8.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-77	The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Attack-Flow Graph

Executive Summary

CVE-2026-28672 is an OS Command Injection vulnerability in Apache Ranger versions 0.6 through 2.8. It occurs in the UnixUserGroupBuilder component due to improper neutralization of special elements, allowing command injection. Attackers could exploit weaknesses in username processing during user group synchronization to execute arbitrary commands on the affected system.

Detection Guidance

Detecting CVE-2026-28672 requires checking Apache Ranger versions 0.6 through 2.8 for the UnixUserGroupBuilder component. Inspect logs for unusual command execution patterns during user group synchronization. Verify if usernames contain special characters or sequences that could indicate injection attempts.

Impact Analysis

This vulnerability could allow attackers to execute arbitrary commands on your system if you are using an affected version of Apache Ranger. This may lead to unauthorized access, data breaches, or system compromise. The impact depends on the privileges of the Apache Ranger service and the commands executed by the attacker.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized command execution on systems managing sensitive data. If exploited, attackers could gain control over systems handling personal or health information, violating data protection requirements under these regulations.

Mitigation Strategies

Upgrade Apache Ranger to a patched version to address the OS Command Injection flaw in the UnixUserGroupBuilder component. The vulnerability affects versions 0.6 through 2.8.

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