CVE-2026-110639

Deferred Deferred - Pending Action

OS Command Injection in @mborne/extract Before 0.2.1

Publication date: 2026-10-14

Last updated on: 2026-10-16

Assigner: VulnCheck

Description

@mborne/extract before 0.2.1 contains an OS command injection vulnerability that allows attackers to execute commands by supplying shell metacharacters in archivePath or targetDir options. Attackers controlling these values passed to extract() can inject commands into unquoted shelljs exec() strings in the unzip, 7z, tar-bz2 and gz extractors, running them with Node.js process privileges.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-14

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-15

EPSS Evaluated

2026-10-18

NVD

CVE-2026-110639

EUVD

EUVD-2026-101267

Affected Vendors & Products

Vendor	Product	Version / Range
mborne	@mborne/extract	0

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This vulnerability is an OS command injection flaw in the @mborne/extract library versions before 0.2.1. Attackers can execute arbitrary commands by injecting shell metacharacters into the archivePath or targetDir options. The issue occurs because user-controlled paths are passed unsafely into shelljs exec() calls within extractors like unzip, 7z, tar-bz2, and gz.

Detection Guidance

Check if your system uses @mborne/extract versions before 0.2.1 by inspecting package.json or running npm list @mborne/extract. Look for extract() calls with user-controlled archivePath or targetDir parameters. Review extractor files (unzip.js, 7z.js, gz.js, tar-bz2.js) for shelljs exec() usage with unquoted paths.

Impact Analysis

If you use a vulnerable version of @mborne/extract, attackers could run commands on your system with the same privileges as the Node.js process. This could lead to data theft, system compromise, or further network infiltration. The impact is severe due to the high CVSS scores (9.3 v4.0, 9.8 v3.1).

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update @mborne/extract to version 0.2.1 or later immediately. Remove or replace any direct shell command execution in extractors. Validate and sanitize all user-provided paths before passing them to extract() functions.

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