CVE-2025-68144

The record

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.

Affected packages

Related vulnerabilities

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• CVE-2025-68143 Model Context Protocol Servers is a collection of reference implementations for the model… Also affects mcp-server-git
• CVE-2025-68145 In mcp-server-git versions prior to 2025.12.17, when the server is started with the… Also affects mcp-server-git
• GHSA-5cgr-j3jf-jw3v mcp-server-git's unrestricted git_init tool allows repository creation at arbitrary… Also affects mcp-server-git
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