CVE-2026-40030
Received Received - Intake
OS Command Injection in parseusbs -v Volume Path Argument

Publication date: 2026-04-08

Last updated on: 2026-04-13

Assigner: VulnCheck

Description
parseusbs before 1.9 contains an OS command injection vulnerability where the volume listing path argument (-v flag) is passed unsanitized into an os.popen() shell command with ls, allowing arbitrary command injection via crafted volume path arguments containing shell metacharacters. An attacker can provide a crafted volume path via the -v flag that injects arbitrary commands during volume content enumeration.
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Meta Information
Published
2026-04-08
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-40030
EUVD
EUVD-2026-20771
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
khyrenz parseusbs to 1.9 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

The vulnerability exists in parseusbs versions before 1.9, where the volume listing path argument provided with the -v flag is not sanitized before being passed into an os.popen() shell command that uses ls. This allows an attacker to inject arbitrary OS commands by crafting the volume path argument with shell metacharacters, leading to command injection during volume content enumeration.

Impact Analysis

This vulnerability can allow an attacker to execute arbitrary commands on the affected system with the privileges of the user running parseusbs. This can lead to full compromise of confidentiality, integrity, and availability of the system, including unauthorized data access, modification, or destruction.

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