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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.

PUBLISHED Reserved 2026-04-02 | Published 2026-04-06 | Updated 2026-04-07 | Assigner GitHub_M




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 2.4.2
affected

References

github.com/...tplace/security/advisories/GHSA-8x9r-hvwg-c55h

github.com/coder/code-marketplace/releases/tag/v2.4.2

cve.org (CVE-2026-35454)

nvd.nist.gov (CVE-2026-35454)

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