cyanheads git-mcp-server up to 2.1.4 child_process command injection

Summaryinfo

A vulnerability was found in cyanheads git-mcp-server up to 2.1.4. It has been classified as critical. This issue affects the function child_process. Performing a manipulation results in command injection. This vulnerability is identified as CVE-2025-53107. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in cyanheads git-mcp-server up to 2.1.4. This affects the function child_process. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

@cyanheads/git-mcp-server is an MCP server designed to interact with Git repositories. Prior to version 2.1.5, there is a command injection vulnerability caused by the unsanitized use of input parameters within a call to child_process.exec, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. The server constructs and executes shell commands using unvalidated user input directly within command-line strings. This introduces the possibility of shell metacharacter injection (|, >, &&, etc.). An MCP Client can be instructed to execute additional actions for example via indirect prompt injection when asked to read git logs. This issue has been patched in version 2.1.5.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-53107 since 06/25/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 2.1.5 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 0dbd6995ccdf76ab770b58013034365b2d06c4d9 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19657). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Versioning Software

Vendor

• cyanheads

Name

• git-mcp-server

Version

• 2.1.0
• 2.1.1
• 2.1.2
• 2.1.3
• 2.1.4

License

• open-source

Website

• Product: https://github.com/cyanheads/git-mcp-server/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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