Description

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Apache InLong. Agent Installer's ModuleManager executes arbitrary shell commands via ExcuteLinux.exeCmd() with no filtering or whitelist validation. This issue affects Apache InLong: from 2.0.0 before 2.4.0. Users are advised to upgrade to Apache InLong's 2.4.0 or cherry-pick [1]/[2] to solve it. [1]  https://github.com/apache/inlong/pull/12151 . [2]  https://github.com/apache/inlong/pull/12155 .

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.8",
  "pubDate": "2026-08-21T09:16:40.083Z",
  "pubdate": "2026-08-21T09:16:40.083Z",
  "executiveSummary": "An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability has been identified in Apache InLong. The vulnerability resides within the Agent Installer's ModuleManager component, specifically via the ExcuteLinux.exeCmd() function. This security flaw allows unauthenticated or unauthorized threat actors to execute arbitrary shell commands on the underlying host operating system with the privileges of the running application.\nThe affected product is Apache InLong, specifically version ranges from 2.0.0 up to, but excluding, 2.4.0. Successful exploitation of this vulnerability can lead to full system compromise, data exfiltration, or malicious payload execution, presenting significant operational and security risks to enterprise environments utilizing the affected agent installer software.\nMitigation requires upgrading the Apache InLong deployment to version 2.4.0 or applying the designated source code patches provided via the official pull requests. There are no specific complex exploitation prerequisites mentioned other than reachability to the vulnerable function handling argument parsing.",
  "technicalDetails": "The vulnerability is classified as an Argument Injection flaw resulting from improper neutralization of argument delimiters within command execution routines. The vulnerable component is the Agent Installer's ModuleManager of Apache InLong. Specifically, the flaw stems from the insecure implementation of the ExcuteLinux.exeCmd() function, which processes input parameters without performing adequate filtering, input sanitization, or whitelist validation.\nAttack flow and exploitation occur when maliciously crafted input containing shell argument delimiters or command injection payloads is passed into the ExcuteLinux.exeCmd() execution chain. Because the function fails to properly isolate command arguments from executable control flow, the injected characters are interpreted directly by the underlying Linux shell. This permits the arbitrary execution of system-level commands.\nThe vulnerable software versions include Apache InLong from 2.0.0 before 2.4.0. The execution context inherits the privileges of the Agent Installer process, potentially leading to elevated local privilege escalation or arbitrary code execution depending on the initial service account context. The post-exploitation impact includes complete system takeover, unauthorized access to sensitive internal data stores, deployment of persistent backdoors, and lateral movement across the internal network architecture."
}