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CVE-2025-68144— mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files

Quick assessment

Affected
modelcontextprotocol servers
Exploitation
High exploitation probability; assess promptly
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 2025.12.17之前版本存在参数注入漏洞，该漏洞源于git_diff和git_checkout函数将用户控制的参数直接传递给git CLI命令而未进行清理，可能导致任意文件覆盖。

AI Predicted 8.6 Difficulty: Easy EPSS 7.21% · P94
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I. Basic Information for CVE-2025-68144

Vulnerability Information
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Vulnerability Title
mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files
Source: CVE Program / CVE List V5
Vulnerability Description
In mcp-server-git versions prior to 2025.12.17, the git_diff and git_checkout functions passed user-controlled arguments directly to git CLI commands without sanitization. Flag-like values (e.g., `--output=/path/to/file` for `git_diff`) would be interpreted as command-line options rather than git refs, enabling arbitrary file overwrites. The fix adds validation that rejects arguments starting with - and verifies the argument resolves to a valid git ref via rev_parse before execution. Users are advised to update to 2025.12.17 resolve this issue when it is released.
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:N/SI:H/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Model Context Protocol Servers 参数注入漏洞
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 2025.12.17之前版本存在参数注入漏洞，该漏洞源于git_diff和git_checkout函数将用户控制的参数直接传递给git CLI命令而未进行清理，可能导致任意文件覆盖。
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 < 2025.12.17 -

II. Public POCs for CVE-2025-68144

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III. Intelligence Information for CVE-2025-68144

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Vendor Advisories for CVE-2025-68144 (1)

Same Patch Batch · modelcontextprotocol · 2025-12-17 · 3 CVEs total

CVE-2025-68145 mcp-server-git has missing path validation when using --repository flag
CVE-2025-68143 mcp-server-git's unrestricted git_init tool allows repository creation at arbitrary filesy

IV. Related Vulnerabilities

Same product: servers
Same vendor: modelcontextprotocol
Same weakness: CWE-88

V. Comments for CVE-2025-68144

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