CVE-2025-68143 mcp-server-git's unrestricted git_init tool allows repository creation at arbitrary filesystem locations
Attackers can create Git repositories at arbitrary filesystem locations via the git_init tool, potentially enabling unauthorized access to directories.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-68143?
CVE-2025-68143 is a medium-severity path traversal vulnerability in modelcontextprotocol servers, published on 17 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). In mcp-server-git versions prior to 2025.9.25, the git_init tool accepted arbitrary filesystem paths and created Git repositories without validating the target location. Unlike other tools which required an existing repository, git_init could operate on any directory accessible to the server process, making those directories eligible for subsequent git operations. The tool was removed entirely, as the server is intended to operate on existing repositories only. Users are advised to upgrade to 2025.9.25 or newer to remediate this issue.
Weakness: CWE-22
Which versions are affected by CVE-2025-68143?
3 open source packages ship an affected version, including mcp-server-git. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mcp-server-git PyPI | All versions | 2025.9.25 |
mcp-server-git PyPI | All versions | 2025.9.25 |
mcp-server-git PyPI | All versions | 2025.9.25 |
Products include Lfprojects Model Context Protocol Servers.
How do I fix CVE-2025-68143?
Upgrade mcp-server-git to 2025.9.25 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-68143 being exploited?
There is no known exploitation of CVE-2025-68143 in the wild and no public exploit code.
Other vulnerabilities in modelcontextprotocol servers
- CVE-2026-27735 mcp-server-git : Path traversal in git_add allows staging files outside repository boundaries
- CVE-2025-68145 mcp-server-git has missing path validation when using --repository flag
- CVE-2025-68144 mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files
Sources
Also known as GHSA-5cgr-j3jf-jw3v, MINI-hc88-pj3p-hg9h, PYSEC-2026-1621.