CVE-2026-45496 in Visual Studio Code
Summary
by MITRE • 07/14/2026
Improper limitation of a pathname to a restricted directory ('path traversal') in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
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Analysis
by VulDB Data Team • 07/14/2026
Path traversal vulnerabilities represent a critical class of security flaws that enable attackers to access files and directories outside the intended scope of an application's file system operations. This particular vulnerability exists within Visual Studio Code's handling of file paths and demonstrates how improper input validation can undermine fundamental security controls designed to restrict file access. The flaw allows unauthorized attackers to bypass local security features by manipulating file path references, potentially enabling them to read or modify files that should remain protected.
The technical implementation of this vulnerability stems from insufficient validation of file path inputs within Visual Studio Code's file system operations. When the application processes user-provided paths or file references, it fails to properly sanitize or validate these inputs against a predefined set of allowed directories or access permissions. This deficiency creates an opportunity for attackers to craft malicious path sequences that traverse beyond the intended directory boundaries using techniques such as double dots followed by forward slashes or backslashes. The vulnerability operates at the operating system level where relative path traversal mechanisms can be exploited to access files in parent directories, effectively undermining the application's security sandboxing.
The operational impact of this vulnerability extends beyond simple file access violations and presents significant risks to development environments and code repositories. An attacker who successfully exploits this weakness could potentially read sensitive configuration files, source code files containing hardcoded credentials, or access other confidential data stored within the application's designated directories. In enterprise development environments where Visual Studio Code is commonly used for code editing and development tasks, this vulnerability could enable lateral movement attacks where attackers escalate privileges to access restricted development resources, build artifacts, or deployment configurations that contain sensitive information.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-22 Path Traversal and represents a fundamental failure in input validation controls. The issue also maps to several ATT&CK techniques including T1059 Command and Scripting Interpreter and T1566 Phishing, as attackers might leverage this weakness to gain access to development credentials or sensitive code repositories that could then be used for more sophisticated attacks. The local nature of the vulnerability means it requires physical access or a compromised user session to exploit effectively, but once successful, the impact can be severe given the typical sensitivity of development environments.
Mitigation strategies should focus on implementing robust input validation and sanitization measures within Visual Studio Code's file handling operations. Developers should ensure that all file path inputs are properly validated against a whitelist of acceptable directories and that relative path components are stripped or normalized before processing. Organizations should also implement proper access controls and privilege separation to limit the impact of potential exploitation. Regular updates to Visual Studio Code should be prioritized, as Microsoft typically addresses such vulnerabilities in security patches. Additionally, development teams should conduct regular code reviews focusing on file system operations and implement automated tools to detect similar path traversal patterns in application code.