Medium severity6.5NVD Advisory· Published Apr 6, 2026· Updated Apr 28, 2026
CVE-2026-35454
CVE-2026-35454
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/coder/code-marketplaceGo | < 1.2.3-0.20260402184705-988440dee05f | 1.2.3-0.20260402184705-988440dee05f |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-8x9r-hvwg-c55hghsaADVISORY
- github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55hnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-35454ghsaADVISORY
- github.com/coder/code-marketplace/commit/988440dee05fceef8400ed725badc604dbf90792ghsaWEB
- github.com/coder/code-marketplace/releases/tag/v2.4.2nvdRelease NotesWEB
News mentions
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