Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-27735— mcp-server-git : Path traversal in git_add allows staging files outside repository boundaries

Quick assessment

Affected
modelcontextprotocol servers
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.

Model Context Protocol Servers是Model Context Protocol开源的一个大模型上下文协议服务器。 Model Context Protocol Servers 2026.1.14之前版本存在路径遍历漏洞，该漏洞源于git_add工具未验证文件路径是否在仓库边界内，可能导致路径遍历攻击。

AI Predicted 5.3 Difficulty: Easy EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-27735

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
mcp-server-git : Path traversal in git_add allows staging files outside repository boundaries
Source: CVE Program / CVE List V5
Vulnerability Description
Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). In mcp-server-git versions prior to 2026.1.14, the git_add tool did not validate that file paths provided in the files argument were within the repository boundaries. Because the tool used GitPython's repo.index.add() rather than the Git CLI, relative paths containing `../` sequences that resolve outside the repository were accepted and staged into the Git index. Users are advised to upgrade to 2026.1.14 or newer to remediate this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/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
Model Context Protocol Servers 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Model Context Protocol Servers是Model Context Protocol开源的一个大模型上下文协议服务器。 Model Context Protocol Servers 2026.1.14之前版本存在路径遍历漏洞，该漏洞源于git_add工具未验证文件路径是否在仓库边界内，可能导致路径遍历攻击。
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
modelcontextprotocol servers < 2026.1.14 -

II. Public POCs for CVE-2026-27735

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-27735

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: servers
Same vendor: modelcontextprotocol
Same weakness: CWE-22

V. Comments for CVE-2026-27735

No comments yet

Leave a comment