External risk intelligence

Visual Studio Code Path Traversal Vulnerability Allows Remote Code Execution

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-102238

Visual Studio Code is a local desktop development application used by developers on their workstations. It is not designed to be deployed as an internet-facing service, edge gateway, or public-facing server, making it highly unlikely to have a public internet attack surface in common deployments.

Path Traversal

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A security flaw has been identified in Visual Studio Code that could permit an unauthorized attacker to execute code over a network. This vulnerability, categorized as critical, arises from an improper limitation of a pathname to a restricted directory, commonly known as a path traversal issue. While the affected technology is a widely used development tool, its typical deployment on local workstations may limit its direct exposure to network-based threats.

  • Code execution flaw in a developer tool.
  • Confirm relevance and exposure for affected systems.
  • Understand potential risk to development environments.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by tricking a user into opening a specially crafted file or link. This would allow them to bypass directory restrictions and execute code remotely on the affected system, potentially leading to a complete compromise.

  • No privileges or user interaction needed.
  • Opening a malicious file or link.
  • Remote code execution and system compromise.

Live Threat

Current exploitation, exposure, and threat context

A path traversal vulnerability in Visual Studio Code could allow an attacker to write or modify files outside of the intended directory, potentially leading to code execution or configuration tampering. This occurs when a user opens a crafted file or workspace, allowing the editor to process malicious path references.

  • Source code and configuration files at risk.
  • User opens crafted file or workspace.
  • Compromised system integrity and potential code execution.

Operational Fix

Recommended remediation, mitigation, and detection steps

Attackers can exploit this vulnerability remotely to execute code over a network due to improper path limitation in Visual Studio Code. Ownership likely falls to development teams or workstation administrators responsible for developer tools. The first practical step is to confirm the presence of Visual Studio Code across the environment, assess its reachability and criticality, identify the accountable owner, and then plan remediation based on risk.

  • Confirm Visual Studio Code deployment and ownership.
  • Verify network reachability and business criticality.
  • Plan remediation based on assessed risk.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is Visual Studio Code?

Visual Studio Code is a widely used, open-source code editor developed by Microsoft. It functions as a local desktop application on developer workstations, providing tools for writing, debugging, and managing source code across various programming languages. Unlike web servers, it is designed for individual user productivity rather than providing network-based services.

What does CVE-2026-102238 mean by path traversal?

This vulnerability, classified as CWE-22, occurs when the software fails to properly restrict file paths. Normally, an application should only access files within specific, safe directories. A path traversal flaw lets an attacker break out of these boundaries, potentially reading, writing, or executing files they should not have permission to access on your computer.

How is this Visual Studio Code flaw triggered?

An attacker triggers this vulnerability by inducing a user to open a specially crafted file or workspace link. It does not occur through background network traffic alone. If a user does not interact with the malicious file or workspace link provided by the attacker, the software's directory restrictions remain intact and the flaw is not exploited.

Do I need to worry about this on my internal network?

Halo Surface Signal notes that Visual Studio Code is typically a local desktop tool, not an internet-facing service or server. Because of this, it is highly unlikely to have a public attack surface. Most risk is concentrated on individual developer workstations rather than infrastructure components, though you should assess systems where developers access external or untrusted data.

How should I respond to this vulnerability?

Begin by identifying all systems in your environment where Visual Studio Code is installed. Determine who owns these workstations and assess how often they interact with files from untrusted sources. Since the exploit requires user action, focus your efforts on inventory management and ensuring your development teams are aware of the risks associated with opening files from unknown origins.

References