Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Coder | Code-Marketplace | <= 2.4.1 |
Related Weaknesses (CWE)
References
- https://github.com/coder/code-marketplace/releases/tag/v2.4.2Release Notes
- https://github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55Third Party Advisory
FAQ
What is CVE-2026-35454?
CVE-2026-35454 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 arbitra...
How severe is CVE-2026-35454?
CVE-2026-35454 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35454?
Check the references section above for vendor advisories and patch information. Affected products include: Coder Code-Marketplace.