CVE-2026-35454
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductCoder Code-marketplace
PublishedApr 6, 2026
First seenApr 6, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- github.com/coder/code-marketplace1.2.3-0.20260402184705-988440dee05f or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| coder code-marketplace | v ≤ 2.4.1 | — |
| github.com/coder/code-marketplaceGo | v < 1.2.3-0.20260402184705-988440dee05f | 1.2.3-0.20260402184705-988440dee05f |
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