CVE-2026-35454— Code Extension Marketplace has a Zip Slip Path Traversal
Quick assessment
Affected
coder code-marketplace
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Code Extension Marketplace是Coder开源的一个代码编辑器扩展市场服务器。 Code Extension Marketplace 2.4.2之前版本存在路径遍历漏洞，该漏洞源于缺少边界检查，可能导致任意文件写入。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-35454
Vulnerability Information
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Vulnerability Title
Code Extension Marketplace has a Zip Slip Path Traversal
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Code Extension Marketplace 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Code Extension Marketplace是Coder开源的一个代码编辑器扩展市场服务器。 Code Extension Marketplace 2.4.2之前版本存在路径遍历漏洞，该漏洞源于缺少边界检查，可能导致任意文件写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| coder | code-marketplace | < 2.4.2 | - |
|
II. Public POCs for CVE-2026-35454
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-35454 (1)
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V. Comments for CVE-2026-35454
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