modelcontextprotocol servers up to 2025.12.16 git_diff argument injection

Summaryinfo

A vulnerability identified as critical has been detected in modelcontextprotocol servers up to 2025.12.16. The affected element is the function git_diff. Performing a manipulation results in argument injection. This vulnerability is identified as CVE-2025-68144. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in modelcontextprotocol servers up to 2025.12.16. It has been classified as critical. This affects the function git_diff. The manipulation with an unknown input leads to a argument injection vulnerability. CWE is classifying the issue as CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-68144 since 12/15/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

Upgrading to version 2025.12.17 eliminates this vulnerability.

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Productinfo

Vendor

• modelcontextprotocol

Name

• servers

Version

• 2025.12.0
• 2025.12.1
• 2025.12.2
• 2025.12.3
• 2025.12.4
• 2025.12.5
• 2025.12.6
• 2025.12.7
• 2025.12.8
• 2025.12.9
• 2025.12.10
• 2025.12.11
• 2025.12.12
• 2025.12.13
• 2025.12.14
• 2025.12.15
• 2025.12.16

Website

• Product: https://github.com/modelcontextprotocol/servers/

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