modelcontextprotocol servers up to 2025.12.16 repo_path path traversal

Summaryinfo

A vulnerability categorized as critical has been discovered in modelcontextprotocol servers up to 2025.12.16. Impacted is an unknown function. Such manipulation of the argument repo_path leads to path traversal. This vulnerability is referenced as CVE-2025-68145. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in modelcontextprotocol servers up to 2025.12.16 and classified as critical. Affected by this issue is an unknown functionality. The manipulation of the argument repo_path with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In mcp-server-git versions prior to 2025.12.17, when the server is started with the --repository flag to restrict operations to a specific repository path, it did not validate that repo_path arguments in subsequent tool calls were actually within that configured path. This could allow tool calls to operate on other repositories accessible to the server process. The fix adds path validation that resolves both the configured repository and the requested path (following symlinks) and verifies the requested path is within the allowed repository before executing any git operations. Users are advised to upgrade to 2025.12.17 upon release to remediate this issue.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-68145 since 12/15/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

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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