What’s Vulnerable › Vulnerabilities

CVE-2026-35454: Code Extension Marketplace has a Zip Slip Path Traversal

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-06 · updated 2026-07-24
• Weakness: CWE-22

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.

Affected products

• coder code-marketplace: through 2.4.1

References

• https://github.com/coder/code-marketplace/releases/tag/v2.4.2
• https://github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55h

Get alerted when CVE-2026-35454 or the next vulnerability affects your stack