coder code-marketplace up to 2.4.1 VSIX File Parser path traversal

Summaryinfo

A vulnerability was found in coder code-marketplace up to 2.4.1. It has been rated as critical. This impacts an unknown function of the component VSIX File Parser. This manipulation causes path traversal. This vulnerability is registered as CVE-2026-35454. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in coder code-marketplace up to 2.4.1. It has been declared as critical. Affected by this vulnerability is an unknown function of the component VSIX File Parser. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity, and availability. The summary by CVE is:

The Code Extension Marketplace is an open-source alternative to the VS Code Marketplace. Prior to 2.4.2, Zip Slip vulnerability in coder/code-marketplace allowed a malicious VSIX file to write arbitrary files outside the extension directory. ExtractZip passed raw zip entry names to a callback that wrote files via filepath.Join with no boundary check; filepath.Join resolved .. components but did not prevent the result from escaping the base path. This vulnerability is fixed in 2.4.2.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-35454 since 04/02/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 2.4.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• coder

Name

• code-marketplace

Version

• 2.4.0
• 2.4.1

Website

• Product: https://github.com/coder/code-marketplace/

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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