Introduction

Researchers have identified a significant remote code execution vulnerability in the Glob file pattern matching library, prompting an urgent update for its users. This flaw resides in the command-line interface (CLI) tool of Glob, affecting a considerable segment of the JavaScript ecosystem.

Key Details Section

• Who: The vulnerability was discovered by AISLE, an automated cybersecurity research organization.
• What: The flaw, rated 7.5 in severity, is classified as CVE-2025-64756. It primarily affects Glob’s CLI when using the –c flag, which executes commands on files matching specified patterns.
• When: The vulnerability has been present in Glob versions v10.2.0 through v11.0.3.
• Where: It impacts users on POSIX systems (Linux, macOS, BSD) who process files from untrusted sources using CI/CD pipelines or build scripts that call glob –c.
• Why: The issue arises from a default setting that enables shell execution, leading to potential execution of malicious commands embedded in file names.
• How: Attackers can leverage this flaw if they can create files with names that include malicious shell metacharacters, enabling unauthorized execution when processed by the Glob CLI.

Why It Matters

This vulnerability poses risks in various areas of IT infrastructure, including:

• Enterprise Security: Increases the attack surface for exploitation through CI/CD methods.
• Server Automation: Misconfiguration could lead to unintentional command execution.
• Compliance: Organizations using Glob in sensitive environments could face compliance challenges if exploited.

Takeaway

IT professionals should prioritize updating to Glob versions 10.5.0, 11.1.0, or 12.0.0 to mitigate risks. Organizations relying on automated pipelines should strengthen security measures and review their code for potential vulnerabilities related to wildcards and file processing.

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